{"id":33860,"date":"2025-05-14T12:13:40","date_gmt":"2025-05-14T08:43:40","guid":{"rendered":"https:\/\/caeassistant.com\/?p=33860"},"modified":"2026-05-16T10:21:07","modified_gmt":"2026-05-16T06:51:07","slug":"%ec%9d%91%eb%a0%a5-%eb%b3%80%ed%98%95%eb%a5%a0-%ea%b3%a1%ec%84%a0","status":"publish","type":"post","link":"https:\/\/dev.caeassistant.com\/ko\/%eb%b8%94%eb%a1%9c%ea%b7%b8\/%ec%9d%91%eb%a0%a5-%eb%b3%80%ed%98%95%eb%a5%a0-%ea%b3%a1%ec%84%a0\/","title":{"rendered":"\uc751\ub825 \ubcc0\ud615\ub960 \uace1\uc120 \uc124\uba85 | \ucd08\ubcf4\uc790 \uac00\uc774\ub4dc"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid vc_row-o-equal-height vc_row-flex\"><div class=\"wpb_column vc_column_container vc_col-sm-4\/5\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><span style=\"font-size: 14pt;\"><strong>What is\u00a0stress strain curve?<\/strong> A stress strain curve is a graphical representation in material science that illustrates the relationship between stress (applied force per unit area) and strain (resulting deformation). Engineers analyze this curve to determine critical mechanical properties, including elasticity, yield strength, and ultimate tensile strength.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Understanding how materials behave under mechanical load is fundamental for safe structural design and accurate failure prediction. Whether analyzing ductile metals or brittle ceramics, interpreting these parameters is essential for both academic study and professional engineering applications.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">\uc774\uac83\uc5d0 <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/caeassistant.com\/\"><strong>CAE \ubcf4\uc870\uc6d0<\/strong><\/a><\/span> guide we provide a rigorous breakdown of the curve\u2019s essential components. We will examine the transition from reversible elastic behavior governed by Hooke\u2019s Law to permanent plastic deformation, explore key metrics like Young\u2019s modulus, and apply these concepts to real-world material selection. By the end, you will be equipped to confidently interpret stress-strain data for any engineering project.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">$$\\sigma = E\\epsilon$$<\/span><\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">What is the Stress Strain Curve?<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \uc7ac\ub8cc\uac00 \ud558\uc911\uc744 \ubc1b\uc558\uc744 \ub54c \ubc1b\ub294 \uc751\ub825(\ub2e8\uc704 \uba74\uc801\ub2f9 \ud798)\uacfc \ubcc0\ud615\ub960(\ubcc0\ud615) \uc0ac\uc774\uc758 \uad00\uacc4\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \ub450 \uac1c\uc758 \uc8fc\uc694 \ucd95\uc744 \uac00\uc9c0\ub294\ub370, \uc218\uc9c1\ucd95\uc740 \uc751\ub825\uc774\uace0 \uc218\ud3c9\ucd95\uc740 \ubcc0\ud615\ub960\uc785\ub2c8\ub2e4. \uc774 \uace1\uc120\uc740 \uc7ac\ub8cc\uc758 \uac70\ub3d9\uc744 \uc774\ud574\ud558\ub294 \ub370 \ud544\uc218\uc801\uc774\uba70, \ud2b9\ud788 \ud2b9\uc815 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud558\ub294 \ub370 \uc788\uc5b4 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc124\uacc4\uc5d0 \uc911\uc694\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. <\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc5d4\uc9c0\ub2c8\uc5b4\ub294 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120 \ubd84\uc11d\uc744 \ud1b5\ud574 \uc7ac\ub8cc\uc758 \uc131\ub2a5\uc744 \uc608\uce21\ud558\uace0 \ub2e4\uc591\ud55c \ud658\uacbd\uc5d0\uc11c\uc758 \uc0ac\uc6a9 \uc801\ud569\uc131\uc744 \ud310\ub2e8\ud558\uc5ec \uc548\uc804\uc131\uacfc \uae30\ub2a5\uc131\uc744 \ubaa8\ub450 \ud655\ubcf4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc800\ud0c4\uc18c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \uadf8\ub9bc 1\uc5d0 \ub098\uc640 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p><strong>\ud83d\udccd stress strain diagram:<\/strong><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-33861\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress-strain-curve-for-low-carbon-steel.png\" alt=\"stress strain diagram | CAE Assistant\" width=\"672\" height=\"423\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress-strain-curve-for-low-carbon-steel.png 717w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress-strain-curve-for-low-carbon-steel-300x189.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress-strain-curve-for-low-carbon-steel-430x270.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress-strain-curve-for-low-carbon-steel-62x39.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress-strain-curve-for-low-carbon-steel-600x377.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress-strain-curve-for-low-carbon-steel-150x94.png 150w\" sizes=\"(max-width: 672px) 100vw, 672px\" \/><\/p>\n<p style=\"text-align: center;\">\uadf8\ub9bc 1: \uc800\ud0c4\uc18c\uac15\uc758 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120 [<a href=\"https:\/\/en.wikipedia.org\/wiki\/Stress%E2%80%93strain_curve\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<h3>stress-strain curve for different materials<\/h3>\n<table>\n<thead>\n<tr>\n<th>\uc7ac\ub8cc<\/th>\n<th>Young\u2019s Modulus (GPa)<\/th>\n<th>Yield Stress (MPa)<\/th>\n<th>Yield Strain<\/th>\n<th>Ultimate Stress (MPa)<\/th>\n<th>Ultimate Strain<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Structural Steel (ASTM A36)<\/td>\n<td>200<\/td>\n<td>250<\/td>\n<td>0.0012<\/td>\n<td>400 \u2013 550<\/td>\n<td>0.20<\/td>\n<\/tr>\n<tr>\n<td>Stainless Steel 304<\/td>\n<td>193<\/td>\n<td>215<\/td>\n<td>0.0011<\/td>\n<td>505<\/td>\n<td>0.70<\/td>\n<\/tr>\n<tr>\n<td>Stainless Steel 316<\/td>\n<td>193<\/td>\n<td>205<\/td>\n<td>0.0011<\/td>\n<td>515<\/td>\n<td>0.60<\/td>\n<\/tr>\n<tr>\n<td>Aluminum Alloy (6061-T6)<\/td>\n<td>68.9<\/td>\n<td>276<\/td>\n<td>0.0040<\/td>\n<td>310<\/td>\n<td>0.12<\/td>\n<\/tr>\n<tr>\n<td>Titanium Alloy (Ti-6Al-4V)<\/td>\n<td>114<\/td>\n<td>880<\/td>\n<td>0.0077<\/td>\n<td>950<\/td>\n<td>0.14<\/td>\n<\/tr>\n<tr>\n<td>Copper (Pure Annealed)<\/td>\n<td>117<\/td>\n<td>70<\/td>\n<td>0.0006<\/td>\n<td>220<\/td>\n<td>0.45<\/td>\n<\/tr>\n<tr>\n<td>\ud0c4\uc18c\uc12c\uc720(CFRP)<\/td>\n<td>200<\/td>\n<td>N\/A (Brittle)<\/td>\n<td>\ud574\ub2f9 \uc5c6\uc74c<\/td>\n<td>3500+<\/td>\n<td>0.015<\/td>\n<\/tr>\n<tr>\n<td>High-Density Polyethylene (HDPE)<\/td>\n<td>0.8<\/td>\n<td>26<\/td>\n<td>0.0300<\/td>\n<td>33<\/td>\n<td>5.00+<\/td>\n<\/tr>\n<tr>\n<td>ABS (Acrylonitrile Butadiene)<\/td>\n<td>2.1<\/td>\n<td>40<\/td>\n<td>0.0180<\/td>\n<td>45<\/td>\n<td>0.10<\/td>\n<\/tr>\n<tr>\n<td>PLA (Polylactic Acid)<\/td>\n<td>3.5<\/td>\n<td>50<\/td>\n<td>0.0150<\/td>\n<td>60<\/td>\n<td>0.06<\/td>\n<\/tr>\n<tr>\n<td>Structural Concrete (High Strength)<\/td>\n<td>30<\/td>\n<td>N\/A (Brittle)<\/td>\n<td>\ud574\ub2f9 \uc5c6\uc74c<\/td>\n<td>5 (Tension)<\/td>\n<td>0.001<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">How to Read or Interpret the Stress Strain Curve?<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \uc7ac\ub8cc\uc758 \ud2b9\uc131\uc5d0 \ub300\ud55c \ud48d\ubd80\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \uace1\uc120\uc758 \ubaa8\uc591\uacfc \ud2b9\uc131\uc744 \uac80\ud1a0\ud558\uc5ec \uac15\ub3c4, \ud0c4\uc131, \uc5f0\uc131, \uc778\uc131\uc744 \ud3ec\ud568\ud55c \ub2e4\uc591\ud55c \uc7ac\ub8cc \ud2b9\uc131\uc744 \ucd94\ub860\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5d4\uc9c0\ub2c8\uc5b4\ucc98\ub7fc \ud574\uc11d\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\ub294 \uba85\ud655\ud558\uace0 \uac04\ub2e8\ud55c \uac00\uc774\ub4dc\ub97c \uc18c\uac1c\ud569\ub2c8\ub2e4. \uac71\uc815\ud558\uc9c0 \ub9c8\uc138\uc694! \uc544\ub798\uc5d0\uc11c \uac01 \ubd80\ubd84\uc744 \uc790\uc138\ud788 \uc124\uba85\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: center;\"><strong><span style=\"font-size: 14pt;\"><img decoding=\"async\" class=\"alignnone wp-image-33871\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/requirement.png\" alt=\"\" width=\"50\" height=\"50\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/requirement.png 512w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/requirement-300x300.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/requirement-430x430.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/requirement-62x62.png 62w, 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https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/requirement-150x150.png 150w\" sizes=\"(max-width: 50px) 100vw, 50px\" \/><\/span><\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n[woodmart_table alignment=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJjZW50ZXIifX19&#8243; border_type=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJzb2xpZCJ9fX0=&#8221; responsive_tabs=&#8221;mobile&#8221; woodmart_css_id=&#8221;685a6e916bf55&#8243; responsive_spacing=&#8221;eyJwYXJhbV90eXBlIjoid29vZG1hcnRfcmVzcG9uc2l2ZV9zcGFjaW5nIiwic2VsZWN0b3JfaWQiOiI2ODVhNmU5MTZiZjU1Iiwic2hvcnRjb2RlIjoid29vZG1hcnRfdGFibGUiLCJkYXRhIjp7InRhYmxldCI6e30sIm1vYmlsZSI6e319fQ==&#8221; border_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjU1LDI1NSwyNTUpIn19fQ==&#8221; border_width=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidG9wIjoiMSIsInJpZ2h0IjoiMSIsImJvdHRvbSI6IjEiLCJsZWZ0IjoiMSIsInVuaXQiOiJweCJ9fX0=&#8221;][woodmart_table_row 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\ubc84\uc804<\/span><\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid vc_row-o-equal-height vc_row-flex\"><div class=\"wpb_column vc_column_container vc_col-sm-4\/5\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<ul style=\"text-align: justify;\">\n<li style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\ucd95 \uc774\ud574: \uc751\ub825\uacfc \ubcc0\ud615\ub960<\/span><\/strong><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825\uacfc \ubcc0\ud615\ub960\uc740 \uc7ac\ub8cc\uac00 \ud798\uc744 \ubc1b\uc744 \ub54c \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub294\uc9c0 \uc124\uba85\ud558\ub294 \ub450 \uac00\uc9c0 \uc8fc\uc694 \uac1c\ub150\uc785\ub2c8\ub2e4.<\/span><\/p>\n<ul style=\"text-align: left;\">\n<li><span style=\"font-size: 14pt;\"><strong>\uc2a4\ud2b8\ub808\uc2a4<\/strong> \uc7ac\ub8cc\uc758 \ub2e8\uc704 \uba74\uc801\ub2f9 \uac00\ud574\uc9c0\ub294 \ud798\uc744 \ub9d0\ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ud30c\uc2a4\uce7c(Pa) \ub2e8\uc704\ub85c \uce21\uc815\ud569\ub2c8\ub2e4. \uc7ac\ub8cc \uba74\uc801\uc5d0 \uac00\ud574\uc9c0\ub294 \ud798\uc758 \ud06c\uae30\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\"><strong>\ubd80\ub2f4<\/strong> \uc7ac\ub8cc\uc5d0 \uc751\ub825\uc774 \uac00\ud574\uc84c\uc744 \ub54c \ubc1c\uc0dd\ud558\ub294 \ubcc0\ud615\uc758 \ucc99\ub3c4\uc785\ub2c8\ub2e4. \ud798\uc744 \uac00\ud558\uae30 \uc804\uacfc \ube44\uad50\ud558\uc5ec \uc7ac\ub8cc\uc758 \ubaa8\uc591\uc774\ub098 \ud06c\uae30\uac00 \uc5bc\ub9c8\ub098 \ubcc0\ud588\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \ubb34\ucc28\uc6d0\ub7c9\uc785\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ube14\ub85c\uadf8\uc5d0\uc11c \uc751\ub825\uacfc \ubcc0\ud615\ub960\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uace0, \uc751\ub825\uacfc \ubcc0\ud615\ub960\uc774 \ubb34\uc5c7\uc778\uc9c0, \uadf8\ub9ac\uace0 \uc751\ub825 \ubcc0\ud615\ub960 \uace1\uc120\uc5d0 \ub300\ud574\uc11c\ub3c4 \uc54c\uc544\ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.\u201c<strong><span style=\"color: #0000ff;\">\ud3c9\uba74 \uc751\ub825\uacfc \ud3c9\uba74 \ubcc0\ud615\ub960: \uc815\uc758 \ubc0f \uc0ac\uc6a9 \uc2dc\uae30<\/span><\/strong>\u201c.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825\uacfc \ubcc0\ud615\ub960 \uc0ac\uc774\uc758 \uc218\ud559\uc801 \uad00\uacc4\ub294 \ub2e4\uc591\ud55c \uc6a9\uc5b4\ub97c \ud1b5\ud574 \ud45c\ud604\ub420 \uc218 \uc788\uc73c\uba70, \uc774\ub294 \ubb3c\uccb4\uc758 \uae30\ud558\ud559\uc801 \uad6c\uc870, \uc678\ubd80 \ud658\uacbd, \ubb3c\uccb4\uc5d0 \uac00\ud574\uc9c0\ub294 \ud798\uc758 \ud2b9\uc131\uacfc \ubc29\ud5a5\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4(\uadf8\ub9bc 2 \ucc38\uc870).<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33862\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Schematic-illustration-of-different-loading-cases.jpg\" alt=\"\ub2e4\uc591\ud55c \ub85c\ub529 \ucf00\uc774\uc2a4\uc758 \uac1c\ub7b5\ub3c4\" width=\"503\" height=\"612\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Schematic-illustration-of-different-loading-cases.jpg 595w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Schematic-illustration-of-different-loading-cases-247x300.jpg 247w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Schematic-illustration-of-different-loading-cases-404x491.jpg 404w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Schematic-illustration-of-different-loading-cases-62x75.jpg 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Schematic-illustration-of-different-loading-cases-150x183.jpg 150w\" sizes=\"(max-width: 503px) 100vw, 503px\" \/><\/p>\n<p style=\"text-align: center;\">\uadf8\ub9bc 2: \ub2e4\uc591\ud55c \ud558\uc911 \ucf00\uc774\uc2a4\uc758 \uac1c\ub7b5\ub3c4 [<a href=\"https:\/\/www.researchgate.net\/figure\/Schematic-representation-of-various-loading-modes-7_fig2_348780093\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<p style=\"text-align: left;\" data-start=\"2138\" data-end=\"2181\"><strong><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33873\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-300x300.png\" alt=\"\" width=\"53\" height=\"53\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-300x300.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-430x430.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-62x62.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-400x400.png 400w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-150x150.png 150w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips.png 512w\" sizes=\"(max-width: 53px) 100vw, 53px\" \/><\/span><\/strong><strong><span style=\"font-size: 14pt;\">\uace1\uc120 \ud574\uc11d\uc744 \uc704\ud55c \ubcf4\ub108\uc2a4 \ud301<\/span><\/strong><\/p>\n<ul style=\"text-align: left;\" data-start=\"2183\" data-end=\"2608\">\n<li style=\"text-align: justify;\" data-start=\"2183\" data-end=\"2299\">\n<p data-start=\"2185\" data-end=\"2299\"><span style=\"font-size: 14pt;\"><strong data-start=\"2185\" data-end=\"2215\">0.2% \uc624\ud504\uc14b \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\uc138\uc694<\/strong> \ud56d\ubcf5\uc810\uc774 \ubd88\ubd84\uba85\ud55c \uacbd\uc6b0 - \uc774\ub294 \uc810\uc9c4\uc801\uc778 \uc804\uc774\uac00 \uc77c\uc5b4\ub098\ub294 \uae08\uc18d\uc5d0 \ub300\ud55c \ud45c\uc900\uc785\ub2c8\ub2e4.<\/span><\/p>\n<\/li>\n<li style=\"text-align: justify;\" data-start=\"2300\" data-end=\"2406\">\n<p data-start=\"2302\" data-end=\"2406\"><span style=\"font-size: 14pt;\"><strong data-start=\"2302\" data-end=\"2332\">\uc2e4\uc81c \uace1\uc120 vs. \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uace1\uc120<\/strong>: \uc0ac\uc6a9 <strong data-start=\"2338\" data-end=\"2360\">\uc9c4\uc751\ub825-\ubcc0\ud615\ub960<\/strong> \uae08\uc18d \uc131\ud615\uacfc \uac19\uc740 \ud070 \ubcc0\ud615\uc758 \uacbd\uc6b0.<\/span><\/p>\n<\/li>\n<li style=\"text-align: justify;\" data-start=\"2407\" data-end=\"2511\">\n<p data-start=\"2409\" data-end=\"2511\"><span style=\"font-size: 14pt;\"><strong data-start=\"2409\" data-end=\"2434\">\uc7ac\ub8cc \uc720\ud615\uc774 \uc911\uc694\ud569\ub2c8\ub2e4<\/strong>: \uc5f0\uc131 = \uae38\uace0 \uace1\uc120\ud615 \uadf8\ub798\ud504, \ucde8\uc131 = \uc9e7\uace0 \uac00\ud30c\ub974\uba70 \uae09\uaca9\ud788 \ub5a8\uc5b4\uc9c0\ub294 \uadf8\ub798\ud504.<\/span><\/p>\n<\/li>\n<li data-start=\"2512\" data-end=\"2608\">\n<p style=\"text-align: justify;\" data-start=\"2514\" data-end=\"2608\"><span style=\"font-size: 14pt;\"><strong data-start=\"2514\" data-end=\"2545\">\uc870\uac74\uc5d0 \ub530\ub77c \uace1\uc120\uc774 \ubcc0\uacbd\ub429\ub2c8\ub2e4<\/strong>: \uace0\uc628\uc774\ub098 \ud558\uc911 \uc18d\ub3c4\ub294 \ubaa8\uc591\uacfc \uac70\ub3d9\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">What are the key regions of the stress strain curve?<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc7ac\ub8cc\uc758 \uac70\ub3d9\uc744 \uc774\ud574\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc751\ub825-\ubcc0\ud615 \uace1\uc120\uc5d0\ub294 \uba87 \uac00\uc9c0 \uc8fc\uc694 \uc601\uc5ed\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33874\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Regions-of-stress-strain-curve.jpg\" alt=\"\uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc758 \uc601\uc5ed\" width=\"539\" height=\"460\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Regions-of-stress-strain-curve.jpg 640w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Regions-of-stress-strain-curve-300x256.jpg 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Regions-of-stress-strain-curve-430x367.jpg 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Regions-of-stress-strain-curve-62x53.jpg 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Regions-of-stress-strain-curve-600x512.jpg 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Regions-of-stress-strain-curve-150x128.jpg 150w\" sizes=\"(max-width: 539px) 100vw, 539px\" \/><\/h3>\n<p style=\"text-align: center;\">\uadf8\ub9bc 3: \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120 \uc601\uc5ed [<a href=\"https:\/\/www.researchgate.net\/figure\/A-typical-stress-strain-curve-indicating-the-elastic-and-plastic-deformation-regions-of-a_fig2_331101466\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<ul>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\ud0c4\uc131 \uc601\uc5ed:<\/strong> \uc774 \uc601\uc5ed\uc5d0\uc11c \uc7ac\ub8cc\ub294 \ubcc0\ud615\ub418\uc9c0\ub9cc \uc751\ub825\uc774 \uc81c\uac70\ub418\uba74 \uc6d0\ub798 \ubaa8\uc591\uc73c\ub85c \ub3cc\uc544\uac11\ub2c8\ub2e4. \uc5ec\uae30\uc11c \uc751\ub825\uacfc \ubcc0\ud615\ub960\uc758 \uad00\uacc4\ub294 \uc120\ud615\uc785\ub2c8\ub2e4(\uadf8\ub9bc 3 \ucc38\uc870).<\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\ud50c\ub77c\uc2a4\ud2f1 \uc9c0\uc5ed:<\/strong> \uc774 \uc601\uc5ed\uc740 \uc7ac\ub8cc\uac00 \uc601\uad6c\uc801\uc73c\ub85c \ubcc0\ud615\ub418\uc5c8\uc74c\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc7ac\ub8cc\ub294 \uc5ec\uc804\ud788 \ubcc0\ud615\uc744 \ubc1b\uc744 \uc218 \uc788\uc9c0\ub9cc, \ud558\uc911\uc774 \uc81c\uac70\ub418\uba74 \uc6d0\ub798 \ud615\ud0dc\ub85c \ub3cc\uc544\uac00\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4(\uadf8\ub9bc 3 \ucc38\uc870).<\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\ud56d\ubcf5\uc810:<\/strong> \uc7ac\ub8cc\uac00 \ud0c4\uc131 \ubcc0\ud615\uc5d0\uc11c \uc18c\uc131 \ubcc0\ud615\uc73c\ub85c \uc804\uc774\ub418\ub294 \uc9c0\uc810\uc785\ub2c8\ub2e4. \uc774 \uc9c0\uc810\uc744 \uc9c0\ub098\uba74 \uc7ac\ub8cc\ub294 \uc6d0\ub798 \ubaa8\uc591\uc73c\ub85c \ub3cc\uc544\uac00\uc9c0 \uc54a\uace0 \uc601\uad6c \ubcc0\ud615\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc601\uad6c \ubcc0\ud615\uc774 \uc2dc\uc791\ub418\ub294 \uc784\uacc4\uc810\uc744 \ub098\ud0c0\ub0b4\uba70, \uc774 \uac12\uc744 \uc774\ud574\ud558\ub294 \uac83\uc740 \uc7ac\ub8cc\uac00 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc124\uacc4\uc5d0\uc11c \ud5c8\uc6a9 \ud55c\uacc4\ub97c \ucd08\uacfc\ud558\uc5ec \ubcc0\ud615\ub418\uc9c0 \uc54a\ub3c4\ub85d \ud558\ub294 \ub370 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4(\uadf8\ub9bc 3 \ucc38\uc870).<\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\ub124\ud0b9:<\/strong> \ub124\ud0b9\uc740 \uc7ac\ub8cc\uac00 \ucd5c\ub300 \uc778\uc7a5 \uac15\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc5ec \ub354 \uc774\uc0c1 \ubcc0\ud615 \uacbd\ud654\uac00 \uac00\ub2a5\ud558\uc9c0 \uc54a\uc744 \ub54c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \uc7ac\ub8cc \ub2e8\uba74\uc758 \ud2b9\uc815 \uc601\uc5ed\uc5d0 \uad6d\ubd80\uc801\uc778 \ubcc0\ud615\uc774 \ubc1c\uc0dd\ud558\uc5ec \uc751\ub825\uc774 \uacc4\uc18d \uc99d\uac00\ud558\ub294 \ub3d9\uc548 \uce58\uc218\uac00 \uac10\uc18c\ud569\ub2c8\ub2e4(\uadf8\ub9bc 1 \ucc38\uc870).<\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\ucd5c\ub300 \uc778\uc7a5 \uac15\ub3c4: <\/strong>\ucd5c\ub300 \uc778\uc7a5 \uac15\ub3c4(UTS)\ub294 \uc7ac\ub8cc\uac00 \ud30c\uad34\ub418\uae30 \uc804\uc5d0 \uacac\ub51c \uc218 \uc788\ub294 \ucd5c\ub300 \uc751\ub825\uc785\ub2c8\ub2e4. \uc774\ub294 \uc7ac\ub8cc\uac00 \ud30c\uad34\ub418\uc9c0 \uc54a\uace0 \uacac\ub51c \uc218 \uc788\ub294 \ucd5c\ub300 \ud558\uc911\uc744 \uacb0\uc815\ud558\uae30 \ub54c\ubb38\uc5d0 \ud558\uc911 \uc9c0\uc9c0 \uc6a9\ub3c4\uc758 \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4(\uadf8\ub9bc 3 \ucc38\uc870).<\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\ud30c\uad34\uc810:<\/strong> \uc77c\ubc18\uc801\uc73c\ub85c \uc0c1\ub2f9\ud55c \uc18c\uc131 \ubcc0\ud615\uc774 \ubc1c\uc0dd\ud55c \ud6c4 \uc7ac\ub8cc\uac00 \ud30c\uc190\ub418\uac70\ub098 \uae68\uc9c0\ub294 \uc9c0\uc810\uc785\ub2c8\ub2e4(\uadf8\ub9bc 3 \ucc38\uc870).<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">How Stiff is It? Decoding the Slope of the Stress-Strain Curve | Elastic Region in stress strain curve<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \ud1b5\ud574 \uc7ac\ub8cc \ubcc0\ud615\uc758 \ub2e8\uacc4\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub9bc 3\uc5d0\uc11c \ubcfc \uc218 \uc788\ub4ef\uc774, \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \uc7ac\ub8cc\uc758 \ucd08\uae30 \ud0c4\uc131 \uac70\ub3d9, \uc989 \uc751\ub825\uc774 \uc81c\uac70\ub41c \ud6c4 \uc6d0\ub798 \ubaa8\uc591\uc73c\ub85c \ub3cc\uc544\uac00\ub294 \ud0c4\uc131 \uc601\uc5ed, \uadf8\ub9ac\uace0 \uc18c\uc131 \ubcc0\ud615, \uc989 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc5d0\uc11c \uc7ac\ub8cc\uac00 \uc601\uad6c\uc801\uc73c\ub85c \ubcc0\ud615\ub418\ub294 \uc18c\uc131 \uc601\uc5ed, \uadf8\ub9ac\uace0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ud30c\uad34(\uc7ac\ub8cc\uac00 \ud30c\uad34\ub418\ub294)\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc774 \uace1\uc120\uc740 \uc751\ub825 \ud558\uc5d0\uc11c \uc7ac\ub8cc\uac00 \uc5b4\ub5bb\uac8c \uac70\ub3d9\ud558\ub294\uc9c0 \uc774\ud574\ud558\ub294 \ub370 \ud544\uc218\uc801\uc774\uba70, \uc774\ub294 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uacb0\uc815\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc774\ud574\ud558\uae30 <strong data-start=\"191\" data-end=\"200\">\uacbd\uc0ac<\/strong> \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc758 \uacbd\uc6b0 \ud2b9\ud788 <strong data-start=\"246\" data-end=\"264\">\ud0c4\uc131 \uc601\uc5ed<\/strong>\u2014\uc7ac\ub8cc\uc758 \uac15\uc131\uacfc \uc751\ub825 \ud558\uc5d0\uc11c\uc758 \uac70\ub3d9\uc5d0 \ub300\ud55c \uadc0\uc911\ud55c \ud1b5\ucc30\ub825\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uac04\ub7b5\ud558\uac8c \uc815\ub9ac\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\uc8fc\uc694 \ud0c4\uc131 \ud2b9\uc131 \uc694\uc57d \ubc0f \uace1\uc120\uacfc\uc758 \uad00\uacc4<\/span><\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-1\/5 vc_hidden-md vc_hidden-sm vc_hidden-xs\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><a href=\"https:\/\/caeassistant.com\/product\/abaqus-for-beginners-mechanical-engineering\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-13045\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner.png\" alt=\"Abaqus \ucd08\ubcf4\uc790\" width=\"316\" height=\"382\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner.png 700w, 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woodmart_css_id=&#8221;685a95226d573&#8243; table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjQ3LDIwMiwxNzIpIn19fQ==&#8221;][\/woodmart_table]<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid vc_row-o-equal-height vc_row-flex\"><div class=\"wpb_column vc_column_container vc_col-sm-4\/5\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: left;\" data-start=\"1814\" data-end=\"1832\"><span style=\"font-size: 14pt;\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33873\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-300x300.png\" alt=\"\" width=\"53\" height=\"53\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-300x300.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-430x430.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-62x62.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-400x400.png 400w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-150x150.png 150w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips.png 512w\" sizes=\"(max-width: 53px) 100vw, 53px\" \/>\ud575\uc2ec \uc694\uc810<\/strong><\/span><\/p>\n<ul style=\"text-align: left;\" data-start=\"1834\" data-end=\"2153\">\n<li data-start=\"1834\" data-end=\"1881\">\n<p data-start=\"1836\" data-end=\"1881\"><span style=\"font-size: 14pt;\"><strong data-start=\"1836\" data-end=\"1879\">\ud0c4\uc131 \uc601\uc5ed = \uacbd\uc0ac = \uac15\uc131 \uc815\ubcf4<\/strong><\/span><\/p>\n<\/li>\n<li data-start=\"1882\" data-end=\"1965\">\n<p data-start=\"1884\" data-end=\"1965\"><span style=\"font-size: 14pt;\">\uc624\uc9c1 <strong data-start=\"1889\" data-end=\"1908\">\uc601\ub960<\/strong> \uc5d0\uc11c \uc9c1\uc811 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4 <strong data-start=\"1933\" data-end=\"1963\">\uc218\uc9c1 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120<\/strong><\/span><\/p>\n<\/li>\n<li data-start=\"1966\" data-end=\"2033\">\n<p data-start=\"1968\" data-end=\"2033\"><span style=\"font-size: 14pt;\"><strong data-start=\"1968\" data-end=\"1998\">\uae30\ud0c0 \ubaa8\ub4c8(\uc804\ub2e8, \uccb4\uc801)<\/strong> \ud2b9\uc815 \ud14c\uc2a4\ud2b8 \uc870\uac74\uc774 \ud544\uc694\ud569\ub2c8\ub2e4<\/span><\/p>\n<\/li>\n<li data-start=\"2034\" data-end=\"2153\">\n<p data-start=\"2036\" data-end=\"2153\"><span style=\"font-size: 14pt;\">\uc774\ub7ec\ud55c \uac12\uc744 \uc544\ub294 \uac83\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \ud544\uc694\ud55c \ub300\ub85c \uac15\ud558\uace0, \ub2e8\ub2e8\ud558\uace0, \uc720\uc5f0\ud55c \uc7ac\ub8cc\ub97c \uc124\uacc4\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/span><\/p>\n<\/li>\n<\/ul>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt; line-height: 115%; color: black;\">\ud6c4\ud06c\uc758 \ubc95\uce59:<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ud6c5\uc758 \ubc95\uce59\uc740 \uc7ac\ub8cc\uac00 \ud0c4\uc131 \ud55c\uacc4 \ub0b4\uc5d0 \uc788\ub294 \ud55c, \uc7ac\ub8cc\uc5d0 \uac00\ud574\uc9c0\ub294 \uc751\ub825\uc740 \ubc1c\uc0dd\ud558\ub294 \ubcc0\ud615\ub960\uc5d0 \uc815\ube44\ub840\ud55c\ub2e4\uace0 \ub9d0\ud569\ub2c8\ub2e4. \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc5d0\uc11c \ud6c5\uc758 \ubc95\uce59\uc740 \ud0c4\uc131 \uc601\uc5ed\uc5d0\uc11c \uc720\ud6a8\ud558\ub2e4\ub294 \uc810\uc744 \uc5b8\uae09\ud560 \uac00\uce58\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c \uc751\ub825-\ubcc0\ud615\ub960 \uad00\uacc4\ub294 \uc120\ud615\uc774\uba70, \uc751\ub825\uc774 \uc81c\uac70\ub418\uba74 \uc7ac\ub8cc\ub294 \uc6d0\ub798 \ubaa8\uc591\uc73c\ub85c \ub3cc\uc544\uac11\ub2c8\ub2e4. \uc601\ub960, \uc804\ub2e8 \ud0c4\uc131\ub960, \uccb4\uc801 \ud0c4\uc131\ub960 \ubc0f \uae30\ud0c0 \uad00\ub828 \uce21\uc815\uac12\uc740 \ubaa8\ub450 \ub2e4\uc74c \uc6d0\ub9ac\uc5d0\uc11c \ud30c\uc0dd\ub429\ub2c8\ub2e4. <a href=\"https:\/\/www.sciencedirect.com\/topics\/engineering\/generalized-hooke#:~:text=Generalised%20Hooke&#039;s%20law%2C%20which%20defines,tensor%20of%20the%20material%2C%20respectively.\" target=\"_blank\" rel=\"nofollow noopener\">\uc77c\ubc18\ud654\ub41c \ud6c4\ud06c\uc758 \ubc95\uce59<\/a> .<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ud6c4\ud06c\uc758 \ubc95\uce59\uc740 \uc218\ud559\uc801\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc601\uc5ed\uc5d0\uc11c \uc751\ub825\uacfc \ubcc0\ud615\ub960\uc758 \uc77c\uc815\ud55c \ube44\uc728\uc740 \uc601\ub960\ub85c \uc815\uc758\ub429\ub2c8\ub2e4., <em><strong>\uc774\uc790\ud615<\/strong><\/em>, (SI \ub2e8\uc704: Pa)\ub294 \uac15\uc131\uc73c\ub85c\ub3c4 \uc778\uc2dd\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">$\\sigma = E\\epsilon$<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">In the above equation, $\\sigma$ is stress and $\\epsilon$\u00a0is strain.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\uc601\ub960:<\/strong><\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc601\ub960\uc740 \uc7ac\ub8cc\uc758 \uae30\ubcf8\uc801\uc778 \ud2b9\uc131\uc73c\ub85c, \uc7ac\ub8cc\uc758 \uae30\ud558\ud559\uc801 \uad6c\uc870\uc640 \uad00\uacc4\uc5c6\uc774 \uc77c\uc815\ud558\uac8c \uc720\uc9c0\ub418\uba70, \uc8fc\uc5b4\uc9c4 \uc7ac\ub8cc\uc5d0 \ub300\ud574 \uade0\uc77c\ud569\ub2c8\ub2e4. \uad6c\uc870\uc801 \uc774\ubc29\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 \uc7ac\ub8cc\ub294 \uce21\uc815 \ubc29\ud5a5\uc5d0 \ub530\ub77c \uc601\ub960\uc774 \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ubaa9\uc7ac\ub294 \ub098\ubb47\uacb0 \ubc29\ud5a5\uc73c\ub85c \uc2dc\ud5d8\ud588\uc744 \ub54c\ubcf4\ub2e4 \ub098\ubb47\uacb0 \ubc29\ud5a5\uc73c\ub85c \uc2dc\ud5d8\ud588\uc744 \ub54c \ub354 \ub192\uc740 \uc601\ub960\uc744 \ubcf4\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\uc804\ub2e8\ud0c4\uc131\ub960:<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ub610\ud55c, \uc6b0\ub9ac\ub294 \uc804\ub2e8 \ud0c4\uc131\uacc4\uc218(shear modulus)\ub97c \uc815\uc758\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uac15\uc131 \ud0c4\uc131\uacc4\uc218\ub77c\uace0\ub3c4 \ud569\ub2c8\ub2e4., <em><strong>G<\/strong><\/em>, \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<div class=\"math-block\" style=\"text-align: left;\" data-math=\"G = \\frac{\\tau}{\\gamma}\"><span style=\"font-size: 14pt;\">$$G = \\frac{\\tau}{\\gamma}$$<\/span><\/div>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc5ec\uae30\uc11c, <strong>$\\tau$<\/strong> \uc804\ub2e8 \uc751\ub825\uc774\uba70 <strong>$\\gamma$<\/strong>\u00a0\uc804\ub2e8 \ubcc0\ud615\ub960\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc9c0\uae08\uae4c\uc9c0 \uc6b0\ub9ac\ub294 \ub2e8\ucd95 \uc778\uc7a5\uc758 \ub9e5\ub77d\uc5d0\uc11c \ud0c4\uc131\uacc4\uc218\ub97c \uc0b4\ud3b4\ubcf4\uc558\uace0, \uc7ac\ub8cc\uc758 \ub2e8\uba74\uacfc \ub3d9\uc77c \ud3c9\uba74\uc5d0 \uc788\ub294 \ud798\uc5d0 \uad00\ud55c \uc804\ub2e8 \ud0c4\uc131\uacc4\uc218\ub97c \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc804\ub2e8 \ud0c4\uc131\uacc4\uc218\ub294 \uc77c\ubc18\uc801\uc778 \uc778\uc7a5\/\uc555\ucd95 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc5d0\uc11c \uc9c1\uc811 \ub098\ud0c0\ub098\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ub300\uc2e0 \ube44\ud2c0\ub9bc\uc774\ub098 \uc9c1\uc811 \uc804\ub2e8 \ud558\uc911\uc744 \ud3ec\ud568\ud558\ub294 \uc2e4\ud5d8\uc5d0\uc11c\ub294 \uc804\ub2e8 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \uc0ac\uc6a9\ud558\uc5ec \uce21\uc815\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\uccb4\uc801 \ud0c4\uc131\ub960:<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ub610 \ub2e4\ub978 \uc911\uc694\ud55c \ud0c4\uc131 \uc0c1\uc218\ub294 \uccb4\uc801 \ud0c4\uc131\ub960(Bulk Modulus)\ub85c, \ubd80\ud53c \ubcc0\ud654\uc5d0 \ub300\ud55c \uc7ac\ub8cc\uc758 \ubc18\uc751\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uccb4\uc801 \ud0c4\uc131\ub960\uc740 \uc815\uc218\uc555 \uc751\ub825\uacfc \uc0c1\ub300 \uccb4\uc801 \ubcc0\ud615\ub960\uc758 \ube44\uc728\ub85c \uc815\uc758\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 14pt;\">$K = -\\frac{P}{\\Delta V \/ V}$<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc5b4\ub514 <em><strong>\ud53c<\/strong><\/em> \uc555\ub825\uc774 \uac00\ud574\uc9c0\uace0 <strong>${\\Delta V \/ V}$<\/strong>\u00a0\uccb4\uc801 \ubcc0\ud615\ub960\uc740 \uc6d0\ub798 \ubd80\ud53c\ub85c \ub098\ub208 \ubd80\ud53c \ubcc0\ud654\ub7c9\uc73c\ub85c \uacc4\uc0b0\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uccb4\uc801 \ud0c4\uc131\ub960\uc740 \ub2e8\ucd95 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uacfc \uc9c1\uc811\uc801\uc778 \uad00\ub828\uc774 \uc5c6\uc2b5\ub2c8\ub2e4. \ub300\uc2e0 \uc815\uc218\uc555 \uc555\ucd95 \uc870\uac74\uc5d0\uc11c \uce21\uc815\ub429\ub2c8\ub2e4. \uccb4\uc801 \ud0c4\uc131\ub960: \uc815\uc218\uc555 \uc555\ucd95 \uc2e4\ud5d8\uc774 \ud544\uc694\ud558\uba70 \uc77c\ubc18\uc801\uc778 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc5d0\uc11c\ub294 \ub098\ud0c0\ub098\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\ud478\uc544\uc1a1 \ube44:<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ud478\uc544\uc1a1 \ube44\ub294 \uc7ac\ub8cc\uac00 \uac00\ud574\uc9c4 \ud798\uc5d0 \uc218\uc9c1\uc778 \ubc29\ud5a5\uc73c\ub85c \uc5b4\ub5bb\uac8c \ubcc0\ud615\ub418\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uae30\ubcf8\uc801\uc778 \uc7ac\ub8cc \ud2b9\uc131\uc785\ub2c8\ub2e4. \uc7ac\ub8cc\uac00 \ud55c \ubc29\ud5a5\uc73c\ub85c \ub298\uc5b4\ub098\uba74 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\ub978 \ub450 \uc218\uc9c1 \ubc29\ud5a5\uc73c\ub85c \uc218\ucd95\ud569\ub2c8\ub2e4. \ud478\uc544\uc1a1 \ube44\ub294 \uc774\ub7ec\ud55c \uac70\ub3d9\uc744 \uc815\ub7c9\ud654\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc218\ud559\uc801\uc73c\ub85c, \ud3ec\uc544\uc1a1 \ube44(\u03bd)\ub294 \uce21\uba74 \ubcc0\ud615\ub960\uacfc \ucd95 \ubcc0\ud615\ub960\uc758 \uc74c\uc758 \ube44\uc728\ub85c \uc815\uc758\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 18pt;\">$\\nu = -\\frac{Lateral \\ strain}{Axial \\ strain}$<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc774 \ube44\uc728\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \uc7ac\ub8cc\uac00 \uc751\ub825 \ud558\uc5d0\uc11c \uc5b4\ub5bb\uac8c \uac70\ub3d9\ud558\ub294\uc9c0, \ud2b9\ud788 \ud615\uc0c1 \ubcc0\ud654 \uce21\uba74\uc5d0\uc11c \uc5b4\ub5bb\uac8c \ubc18\uc751\ud558\ub294\uc9c0 \uc608\uce21\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc7ac\ub8cc\ub97c \uae38\uc774 \ubc29\ud5a5\uc73c\ub85c \uc7a5\ub825\uc73c\ub85c \ub2f9\uae30\uba74 \uc9c1\uacbd\uc774 \uac10\uc18c\ud558\ub294\ub370, \ud478\uc544\uc1a1 \ube44\ub294 \uadf8 \uc815\ub3c4\ub97c \uc54c\ub824\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uae08\uc18d\uc758 \uc77c\ubc18\uc801\uc778 \ud478\uc544\uc1a1 \ube44\ub294 \uc57d 0.3\uc785\ub2c8\ub2e4. \uc774\ub294 \uc7ac\ub8cc\uac00 \ub298\uc5b4\ub0ac\uc744 \ub54c \ud6a1\ubc29\ud5a5 \uc218\ucd95\uc774 \ucd95\ubc29\ud5a5 \uc2e0\uc7a5\uc758 \uc57d 30%\uc784\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \ud478\uc544\uc1a1 \ube44\uac00 0.5\uc778 \uc7ac\ub8cc\ub294 \ubcc0\ud615 \uc2dc \ubd80\ud53c\uac00 \uac70\uc758 \uc77c\uc815\ud558\uac8c \uc720\uc9c0\ub418\ubbc0\ub85c \ube44\uc555\ucd95\uc131\uc73c\ub85c \uac04\uc8fc\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc774\ub7ec\ud55c \ud2b9\uc131\uc740 \ub2e4\uc591\ud55c \ud558\uc911 \uc870\uac74\uc5d0\uc11c \uc7ac\ub8cc\uc758 \uc124\uacc4\ubd80\ud130 \uc131\ub2a5\uae4c\uc9c0 \ubaa8\ub4e0 \uac83\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ubbc0\ub85c \uc7ac\ub8cc \uacfc\ud559, \uad6c\uc870 \uacf5\ud559, \uc0dd\uccb4 \uc5ed\ud559\uacfc \uac19\uc740 \ubd84\uc57c\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ub4f1\ubc29\uc131 \uc7ac\ub8cc\uc758 \uacbd\uc6b0, \ud0c4\uc131\uacc4\uc218, \uc804\ub2e8 \ud0c4\uc131\uacc4\uc218, \uccb4\uc801 \ud0c4\uc131\uacc4\uc218 \uc0ac\uc774\uc5d0\ub294 \ud3ec\uc544\uc1a1 \ube44(\u03bd)\ub97c \ud1b5\ud574 \uc5f0\uacb0\uc774 \uc874\uc7ac\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 14pt;\">$E = 2G(1 + \\nu)$<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 14pt;\">$E = 3K(1 &#8211; 2\\nu)$<\/span><\/p>\n<h2><span style=\"color: #ff6600;\">Determining Yield Strength: The 0.2% Offset Method Explained<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">0.2% \uc624\ud504\uc14b \ubc29\ubc95\uc740 \ud56d\ubcf5\uc810\uc774 \uba85\ud655\ud558\uac8c \uc815\uc758\ub418\uc9c0 \uc54a\uc740 \uc7ac\ub8cc(\uc608: \ub9ce\uc740 \uae08\uc18d \ubc0f \ud569\uae08)\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub97c \uacb0\uc815\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. <\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc77c\ubd80 \uc7ac\ub8cc\uc5d0\uc11c\ub294 \ud0c4\uc131 \ubcc0\ud615\uc5d0\uc11c \uc18c\uc131 \ubcc0\ud615\uc73c\ub85c\uc758 \uc804\uc774\uac00 \uc810\uc9c4\uc801\uc73c\ub85c \uc77c\uc5b4\ub098\uae30 \ub54c\ubb38\uc5d0 \uc18c\uc131 \ubcc0\ud615\uc774 \uc2dc\uc791\ub418\ub294 \uc815\ud655\ud55c \uc9c0\uc810\uc744 \ud30c\uc545\ud558\uae30 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \uadf8\ub9bc 4\uc5d0\uc11c \ubcfc \uc218 \uc788\ub4ef\uc774, \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc758 \ucd08\uae30 \uc120\ud615(\ud0c4\uc131) \ubd80\ubd84\uc5d0 \ud3c9\ud589\ud55c \uc120\uc744 \uadf8\uc5b4 \ubcc0\ud615\ub960 \uac12\uc744 0.2%(\uc18c\uc218\uc810 \ud45c\uae30\ub85c 0.002)\ub85c \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \uc624\ud504\uc14b \uc120\uc774 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uacfc \uad50\ucc28\ud558\ub294 \uc9c0\uc810\uc744 \ud56d\ubcf5 \uac15\ub3c4\ub85c \uac04\uc8fc\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\" data-start=\"1603\" data-end=\"1621\"><span style=\"font-size: 14pt;\">\uac04\ub2e8\ud788 \ub9d0\ud574\uc11c:<\/span><\/p>\n<ul data-start=\"1622\" data-end=\"1747\">\n<li style=\"text-align: left;\" data-start=\"1622\" data-end=\"1684\">\n<p data-start=\"1624\" data-end=\"1684\"><span style=\"font-size: 14pt;\"><strong data-start=\"1624\" data-end=\"1639\">\ud56d\ubcf5\uc810<\/strong> \uc774\ub2e4 <strong data-start=\"1647\" data-end=\"1659\">\uc704\uce58<\/strong> \uc591\ubcf4\uac00 \uc2dc\uc791\ub418\ub294 \uacf3.<\/span><\/p>\n<\/li>\n<li data-start=\"1685\" data-end=\"1747\">\n<p style=\"text-align: left;\" data-start=\"1687\" data-end=\"1747\"><span style=\"font-size: 14pt;\"><strong data-start=\"1687\" data-end=\"1705\">\ud56d\ubcf5 \uac15\ub3c4<\/strong> \uc774\ub2e4 <strong data-start=\"1713\" data-end=\"1722\">\uac12<\/strong> \uadf8 \uc2dc\uc810\uc5d0\uc11c\ub294 \uc2a4\ud2b8\ub808\uc2a4\uac00 \uc788\uc5c8\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33894\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method.png\" alt=\"0.2% \uc624\ud504\uc14b \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc7ac\ub8cc\uc758 \ud56d\ubcf5 \uac15\ub3c4 \uacb0\uc815\" width=\"602\" height=\"416\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method.png 857w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method-300x207.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method-430x297.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method-768x531.png 768w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method-62x43.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method-600x414.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method-725x501.png 725w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Determining-the-yield-strength-of-a-material-using-the-0.2-offset-method-150x104.png 150w\" sizes=\"(max-width: 602px) 100vw, 602px\" \/><\/p>\n<p style=\"text-align: center;\">\uadf8\ub9bc 4: 0.2% \uc624\ud504\uc14b \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc7ac\ub8cc\uc758 \ud56d\ubcf5 \uac15\ub3c4 \uacb0\uc815 [<a href=\"https:\/\/efficientengineer.com\/material-strength-ductility-toughness\/\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<p style=\"text-align: center;\"><em><strong><span style=\"font-size: 14pt;\">\ub2e8\uacc4\ubcc4: 0.2% \uc624\ud504\uc14b \ubc29\ubc95 \uc801\uc6a9 \ubc29\ubc95<\/span><\/strong><\/em><\/p>\n\n\t\t<\/div>\n\t<\/div>\n[woodmart_table alignment=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJjZW50ZXIifX19&#8243; border_type=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJzb2xpZCJ9fX0=&#8221; 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table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjQ3LDIwMiwxNzIpIn19fQ==&#8221;][\/woodmart_table]\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: left;\" data-start=\"2201\" data-end=\"2219\"><strong><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33873\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-300x300.png\" alt=\"\" width=\"53\" height=\"53\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-300x300.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-430x430.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-62x62.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-400x400.png 400w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips-150x150.png 150w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/tips.png 512w\" sizes=\"(max-width: 53px) 100vw, 53px\" \/>\uac04\ub2e8\ud55c \uba54\ubaa8:<\/span><\/strong><\/p>\n<ul style=\"text-align: left;\" data-start=\"2220\" data-end=\"2494\">\n<li data-start=\"2220\" data-end=\"2314\">\n<p data-start=\"2222\" data-end=\"2314\"><span style=\"font-size: 14pt;\"><strong data-start=\"2222\" data-end=\"2235\">\uc65c 0.2%\uc778\uac00\uc694?<\/strong> \uc2e4\uc6a9\uc801\uc77c \ub9cc\ud07c \uc791\uace0, \uce21\uc815\ud558\uae30 \uc26c\uc6b8 \ub9cc\ud07c \ud070 \uc0b0\uc5c5 \ud45c\uc900\uc785\ub2c8\ub2e4.<\/span><\/p>\n<\/li>\n<li data-start=\"2315\" data-end=\"2401\">\n<p data-start=\"2317\" data-end=\"2401\"><span style=\"font-size: 14pt;\"><strong data-start=\"2317\" data-end=\"2366\">\ud56d\ubcf5\uc810\uc774 \uba85\ud655\ud558\uc9c0 \uc54a\uc740 \uc7ac\ub8cc\uc5d0 \uc801\uc6a9 \uac00\ub2a5<\/strong>, \uc54c\ub8e8\ubbf8\ub284\uc774\ub098 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uacfc \uac19\uc740 \uac83.<\/span><\/p>\n<\/li>\n<li data-start=\"2402\" data-end=\"2494\">\n<p data-start=\"2404\" data-end=\"2494\"><span style=\"font-size: 14pt;\">\uc774 \ubc29\ubc95\uc740 \ud2b9\ud788 \uc124\uacc4, \uc548\uc804 \uacc4\uc0b0, \uc7ac\ub8cc \ube44\uad50\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\"><strong>Engineering VS True Stress Strain Curve<\/strong><\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uacf5\ud559 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120 \uc815\uc758:<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825\uacfc \ubcc0\ud615\ub960\uc740 \uc2dc\ud3b8\uc758 \ucd08\uae30 \ub2e8\uba74\uc801\uacfc \ucd08\uae30 \uae38\uc774\ub97c \uae30\uc900\uc73c\ub85c \uacc4\uc0b0\ub429\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc2a4\ud2b8\ub808\uc2a4:<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span style=\"font-size: 14pt;\">$\\sigma_{engineering} = \\frac{F}{A_0}$<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc5b4\ub514 <em>\uc5d0\ud504<\/em> \ub294 \uc801\uc6a9\ub41c \ud798\uc774\uba70, <em>\uc5d0\uc774<sub>0<\/sub><\/em> \ucd08\uae30 \ub2e8\uba74\uc801\uc774\uc5d0\uc694.<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 14pt;\">\uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ubcc0\ud615:<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span style=\"font-size: 14pt;\">$\\epsilon_{engineering} = \\frac{\\Delta L}{L_0}$<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">Where $\\Delta L$ is the change in length, and $L_0$\u00a0is the initial length.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc2e4\uc81c \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120 \uc815\uc758:<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825\uacfc \ubcc0\ud615\ub960\uc740 \ubcc0\ud615 \uc911 \uc2dc\ud3b8\uc758 \uc21c\uac04 \ub2e8\uba74\uc801\uacfc \uc21c\uac04 \uae38\uc774\ub97c \uae30\ubc18\uc73c\ub85c \uacc4\uc0b0\ub429\ub2c8\ub2e4. \uc774\ub294 \ud2b9\ud788 \ud070 \ubcc0\ud615\ub960\uc5d0\uc11c \uc7ac\ub8cc \uac70\ub3d9\uc744 \ub354\uc6b1 \uc815\ud655\ud558\uac8c \ud45c\ud604\ud569\ub2c8\ub2e4. \uc774\ub294 \uc18c\uc131 \ubcc0\ud615, \ub124\ud0b9 \ubc0f \uc131\ud615 \uacf5\uc815 \uc911 \uc7ac\ub8cc \uac70\ub3d9\uc744 \uc774\ud574\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc9c4\uc815\ud55c \uc2a4\ud2b8\ub808\uc2a4:<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span style=\"font-size: 14pt;\">$\\sigma_{true} = \\frac{F}{A_{instantaneous}}$<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 14pt;\">\ud2b8\ub8e8 \uc2a4\ud2b8\ub808\uc778:<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span style=\"font-size: 14pt;\">$\\epsilon_{true} = Ln(1 + \\epsilon_{engineering})$<\/span><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-1\/5 vc_hidden-md vc_hidden-sm vc_hidden-xs\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><a href=\"https:\/\/caeassistant.com\/product\/abaqus-for-beginners-mechanical-engineering\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-13045\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner.png\" alt=\"Abaqus \ucd08\ubcf4\uc790\" width=\"316\" height=\"382\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner.png 700w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-248x300.png 248w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-406x491.png 406w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-62x75.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-600x725.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-150x181.png 150w\" sizes=\"(max-width: 316px) 100vw, 316px\" \/><\/a><\/p>\n<p class=\"product_title entry-title wd-entities-title\" style=\"text-align: center;\"><a href=\"https:\/\/caeassistant.com\/product\/abaqus-for-beginners-mechanical-engineering\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff; font-size: 12pt;\">\ucd08\ubcf4\uc790\ub97c \uc704\ud55c \uc544\ubc14\ucfe0\uc2a4 \uacfc\uc815 | \uc5d0\ud504\uc774\uc5e0 \uc2dc\ubbac\ub808\uc774\uc158 \ud29c\ud1a0\ub9ac\uc5bc<\/span><\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><a href=\"https:\/\/caeassistant.com\/product\/abaqus-fea-training\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4898\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2020\/04\/package.jpg\" alt=\"ABAQUS Part1 \uce94\ud2f8\ub808\ubc84 \uc18c\uac1c\" width=\"317\" height=\"383\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2020\/04\/package.jpg 700w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2020\/04\/package-600x725.jpg 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2020\/04\/package-150x181.jpg 150w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2020\/04\/package-248x300.jpg 248w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2020\/04\/package-406x491.jpg 406w\" sizes=\"(max-width: 317px) 100vw, 317px\" \/><\/a><\/p>\n<p class=\"product_title entry-title wd-entities-title\" style=\"text-align: center;\"><a href=\"https:\/\/caeassistant.com\/product\/abaqus-fea-training\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-size: 12pt; color: #0000ff;\">\uc544\ubc14\ucfe0\uc2a4 FEA \uad50\uc721(\ubb34\ub8cc \uce94\ud2f8\ub808\ubc84 \ubcf4 \ud29c\ud1a0\ub9ac\uc5bc)<\/span><\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">Key differences between the engineering stress strain curve and the true stress strain curve:<\/span><\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n[woodmart_table alignment=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJjZW50ZXIifX19&#8243; border_type=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJzb2xpZCJ9fX0=&#8221; responsive_tabs=&#8221;mobile&#8221; woodmart_css_id=&#8221;685a6e916bf55&#8243; responsive_spacing=&#8221;eyJwYXJhbV90eXBlIjoid29vZG1hcnRfcmVzcG9uc2l2ZV9zcGFjaW5nIiwic2VsZWN0b3JfaWQiOiI2ODVhNmU5MTZiZjU1Iiwic2hvcnRjb2RlIjoid29vZG1hcnRfdGFibGUiLCJkYXRhIjp7InRhYmxldCI6e30sIm1vYmlsZSI6e319fQ==&#8221; border_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjU1LDI1NSwyNTUpIn19fQ==&#8221; border_width=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidG9wIjoiMSIsInJpZ2h0IjoiMSIsImJvdHRvbSI6IjEiLCJsZWZ0IjoiMSIsInVuaXQiOiJweCJ9fX0=&#8221;][woodmart_table_row 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table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjUxLDIyOCwyMTMpIn19fQ==&#8221;][woodmart_table_row table_column=&#8221;%5B%7B%22column_content%22%3A%22Necking%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Does%20not%20account%20for%20necking%3B%20stress%20decreases%20after%20UTS%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Accounts%20for%20necking%3B%20stress%20continues%20to%20rise%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%5D&#8221; woodmart_css_id=&#8221;685a9b9143433&#8243; table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjQ3LDIwMiwxNzIpIn19fQ==&#8221;][woodmart_table_row table_column=&#8221;%5B%7B%22column_content%22%3A%22Curve%20Shape%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Drops%20after%20UTS%20(ultimate%20tensile%20strength)%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Continues%20to%20rise%20due%20to%20reduced%20cross-sectional%20area%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%5D&#8221; woodmart_css_id=&#8221;685a9bcab3daa&#8221; table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjUxLDIyOCwyMTMpIn19fQ==&#8221;][woodmart_table_row table_column=&#8221;%5B%7B%22column_content%22%3A%22Applications%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Approximation%20for%20small%20deformations%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Accurate%20for%20large%20deformations%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%5D&#8221; woodmart_css_id=&#8221;685a9c06057be&#8221; table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjQ3LDIwMiwxNzIpIn19fQ==&#8221;][\/woodmart_table]<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid vc_row-o-equal-height vc_row-flex\"><div class=\"wpb_column vc_column_container vc_col-sm-4\/5\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">Hardness and Toughness<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc774\uc81c \uacbd\ub3c4\uc640 \uc778\uc131\uc744 \uc815\uc758\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc778\uc131\uc740 \uc7ac\ub8cc\uac00 \ud30c\uad34\uc810\uc5d0 \ub3c4\ub2ec\ud560 \ub54c\uae4c\uc9c0 \uc5d0\ub108\uc9c0\ub97c \ud761\uc218\ud560 \uc218 \uc788\ub294 \ub2a5\ub825\uc785\ub2c8\ub2e4. \ud30c\uad34\ub418\uae30 \uc804\uc5d0 \ub9ce\uc740 \uc5d0\ub108\uc9c0\ub97c \ud761\uc218\ud560 \uc218 \uc788\ub294 \uc7ac\ub8cc\ub294 \ub192\uc740 \uc778\uc131\uc744 \uac00\uc9c4 \uac83\uc73c\ub85c \uac04\uc8fc\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33907\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve.png\" alt=\"\uc751\ub825 \ubcc0\ud615\ub960 \uace1\uc120\uc758 \uc778\uc131 \uc2dc\uac01\ud654\" width=\"498\" height=\"370\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve.png 776w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve-300x223.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve-430x319.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve-768x570.png 768w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve-62x46.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve-600x445.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve-725x538.png 725w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Toughness-visualization-in-stress-strain-curve-150x111.png 150w\" sizes=\"(max-width: 498px) 100vw, 498px\" \/><\/p>\n<p style=\"text-align: center;\">\uadf8\ub9bc 5: \uc751\ub825 \ubcc0\ud615 \uace1\uc120\uc758 \uc778\uc131 \uc2dc\uac01\ud654 [<a href=\"https:\/\/en.wikipedia.org\/wiki\/Toughness\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc778\uc131\uc740 \uadf8\ub9bc 5\uc5d0\uc11c \ubcf4\ub4ef\uc774 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120 \uc544\ub798\uc758 \uba74\uc801\uc73c\ub85c \uc2dc\uac01\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uba74\uc801\uc774 \ud074\uc218\ub85d \uc778\uc131\uc774 \ub354 \ub192\uace0, \uc7ac\ub8cc\uac00 \ud30c\uad34\ub418\uae30 \uc804\uc5d0 \ub9ce\uc740 \uc591\uc758 \uc5d0\ub108\uc9c0\ub97c \ud761\uc218\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ub192\uc740 \uc778\uc131\uc744 \ub2ec\uc131\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc7ac\ub8cc\uac00 \ub192\uc740 \uac15\ub3c4\uc640 \ub192\uc740 \uc5f0\uc131\uc758 \uade0\ud615\uc744 \uc798 \ub9de\ucdb0\uc57c \ud558\ub294 \ubc18\uba74, \uac15\ub3c4\uac00 \ub0ae\uace0 \ucde8\uc131\uc778 \uc7ac\ub8cc\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc778\uc131\uc774 \ub0ae\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc6b0\ub9ac\uac00 \uc0ac\ub78c\uc744 \ud68c\ubcf5\ub825\uc774 \uc788\ub2e4\uace0 \ud45c\ud604\ud560 \ub54c, \uc6b0\ub9ac\ub294 \uadf8 \uc0ac\ub78c\uc774 \ubcc0\ud654\uc5d0\uc11c \ud68c\ubcf5\ud558\uace0 \ubcf8\ub798\uc758 \uc131\uaca9\uc744 \uc720\uc9c0\ud558\ub294 \ub2a5\ub825\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774\uc640 \uc720\uc0ac\ud558\uac8c, \uc7ac\ub8cc\uc758 \ud68c\ubcf5\ub825\uc740 \uc6d0\ub798 \ud615\ud0dc\ub85c \ub3cc\uc544\uac00\uba74\uc11c\ub3c4 \uc5d0\ub108\uc9c0\ub97c \ud761\uc218\ud560 \uc218 \uc788\ub294 \uc815\ub3c4\ub85c \uc815\uc758\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc2dc \ub9d0\ud574, \ud68c\ubcf5\ub825\uc740 \uc7ac\ub8cc\uac00 \ud0c4\uc131\uc801\uc73c\ub85c \ubcc0\ud615\ub418\uba74\uc11c\ub3c4 \uc5d0\ub108\uc9c0\ub97c \ud761\uc218\ud560 \uc218 \uc788\ub294 \ub2a5\ub825\uc744 \uce21\uc815\ud558\ub294 \uac83\uc785\ub2c8\ub2e4(\uadf8\ub9bc 6 \ucc38\uc870).<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33908\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/resilience-visualization-in-stress-strain-curve.png\" alt=\"\uc751\ub825 \ubcc0\ud615 \uace1\uc120\uc758 \ubcf5\uc6d0\ub825 \uc2dc\uac01\ud654\" width=\"523\" height=\"381\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/resilience-visualization-in-stress-strain-curve.png 717w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/resilience-visualization-in-stress-strain-curve-300x218.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/resilience-visualization-in-stress-strain-curve-430x313.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/resilience-visualization-in-stress-strain-curve-62x45.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/resilience-visualization-in-stress-strain-curve-600x437.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/resilience-visualization-in-stress-strain-curve-150x109.png 150w\" sizes=\"(max-width: 523px) 100vw, 523px\" \/><\/p>\n<p style=\"text-align: center;\">\uadf8\ub9bc 6: \uc751\ub825 \ubcc0\ud615 \uace1\uc120\uc758 \ubcf5\uc6d0\ub825 \uc2dc\uac01\ud654 [<span style=\"color: #0000ff;\">\ucc38\uc870<\/span>]<\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc778\uc131\uc740 \uccb4\uc801 \ud2b9\uc131\uc778 \ubc18\uba74, \uacbd\ub3c4\ub294 \ud45c\uba74 \ud2b9\uc131\uc785\ub2c8\ub2e4. \uacbd\ub3c4\ub294 \uae01\ud798, \ub9c8\ubaa8, \uce68\uc2dd\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc778 \ubc18\uba74, \uc778\uc131\uc740 \ud30c\uad34 \uc800\ud56d\uc131, \uc555\ucd95 \uac15\ub3c4, \uadf8\ub9ac\uace0 \uc2e0\uc7a5\ub960\uacfc \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">Strain Hardening and Work Hardening<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\uac00\uacf5 \uacbd\ud654\uc640 \ubcc0\ud615 \uacbd\ud654\ub294 \uac19\uc2b5\ub2c8\ub2e4.<\/strong> \ubcc0\ud615 \uacbd\ud654\ub294 \ud569\uae08\uc758 \uac15\ub3c4\ub97c \ub192\uc774\ub294 \ub370 \uac00\uc7a5 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ubc29\ubc95 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uae08\uc18d\uc758 \uac15\ub3c4\ub97c \ub192\uc774\uae30 \uc704\ud574 \uc601\uad6c \ubcc0\ud615\uc744 \uc774\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. <\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uac00\uacf5 \uacbd\ud654(\ud754\ud788 \ubcc0\ud615 \uacbd\ud654\ub77c\uace0 \ud568)\ub294 \uc7ac\ub8cc\uac00 \uc18c\uc131(\uc601\uad6c) \ubcc0\ud615\uc744 \uacaa\uc73c\uba74\uc11c \uac15\ub3c4\uac00 \uc99d\uac00\ud558\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4(\uadf8\ub9bc 7 \ucc38\uc870). \uc18c\uc131 \ubcc0\ud615\uc740 \uc6d0\uc790\uc758 \uc7ac\ubc30\uc5f4\uc744 \ub9c9\uc744 \ub9cc\ud07c \ucda9\ubd84\ud788 \ub0ae\uc740 \uc628\ub3c4\uc5d0\uc11c \ubc1c\uc0dd\ud574\uc57c \ud558\ubbc0\ub85c \ub0c9\uac04 \uac00\uacf5\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131\uc740 \uc0c1\ub2f9\ud55c \ubcc0\ud615\uc744 \uacaa\uc740 \ud6c4 \ucd94\uac00 \ubcc0\ud615\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc774 \uc99d\uac00\ud560 \uc218 \uc788\ub294 \uae08\uc18d\uc5d0\uc11c \ud2b9\ud788 \uc911\uc694\ud569\ub2c8\ub2e4. \ubcc0\ud615 \uacbd\ud654\ub97c \uc774\ud574\ud558\uba74 \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \ubc18\ubcf5 \ud558\uc911\uc744 \uacac\ub51c \uc218 \uc788\ub294 \uc7ac\ub8cc\ub97c \uc124\uacc4\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33909 size-full\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Work-hardening-in-stress-strain-curve.png\" alt=\"\uc751\ub825 \ubcc0\ud615\ub960 \uace1\uc120\uc5d0\uc11c\uc758 \uac00\uacf5 \uacbd\ud654\" width=\"343\" height=\"332\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Work-hardening-in-stress-strain-curve.png 343w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Work-hardening-in-stress-strain-curve-300x290.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Work-hardening-in-stress-strain-curve-62x60.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Work-hardening-in-stress-strain-curve-150x145.png 150w\" sizes=\"(max-width: 343px) 100vw, 343px\" \/><\/p>\n<p style=\"text-align: center;\">\uadf8\ub9bc 7: \uc751\ub825 \ubcc0\ud615\ub960 \uace1\uc120\uc758 \uac00\uacf5 \uacbd\ud654<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-1\/5 vc_hidden-md vc_hidden-sm vc_hidden-xs\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><a href=\"https:\/\/caeassistant.com\/product\/abaqus-for-beginners-mechanical-engineering\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-13045\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner.png\" alt=\"Abaqus \ucd08\ubcf4\uc790\" width=\"316\" height=\"382\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner.png 700w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-248x300.png 248w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-406x491.png 406w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-62x75.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-600x725.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2023\/06\/packageBeginner-150x181.png 150w\" sizes=\"(max-width: 316px) 100vw, 316px\" \/><\/a><\/p>\n<p class=\"product_title entry-title wd-entities-title\" style=\"text-align: center;\"><a href=\"https:\/\/caeassistant.com\/product\/abaqus-for-beginners-mechanical-engineering\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff; font-size: 12pt;\">\ucd08\ubcf4\uc790\ub97c \uc704\ud55c \uc544\ubc14\ucfe0\uc2a4 \uacfc\uc815 | \uc5d0\ud504\uc774\uc5e0 \uc2dc\ubbac\ub808\uc774\uc158 \ud29c\ud1a0\ub9ac\uc5bc<\/span><\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-47335 size-full\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Hardening-plasticity-in-Abaqus-tutorial-CAE-Assistant.webp\" alt=\"Hardening plasticity in Abaqus tutorial-CAE Assistant\" width=\"215\" height=\"260\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Hardening-plasticity-in-Abaqus-tutorial-CAE-Assistant.webp 215w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Hardening-plasticity-in-Abaqus-tutorial-CAE-Assistant-10x12.webp 10w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Hardening-plasticity-in-Abaqus-tutorial-CAE-Assistant-62x75.webp 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Hardening-plasticity-in-Abaqus-tutorial-CAE-Assistant-150x181.webp 150w\" sizes=\"(max-width: 215px) 100vw, 215px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/caeassistant.com\/product\/abaqus-kinematic-hardening-1\/\"><strong>Abaqus\uc758 \uacbd\ud654 \uc18c\uc131<\/strong><\/a><\/span><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong><span style=\"font-size: 14pt;\">Key differences in hardness and toughness, and hardening:<\/span><\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n[woodmart_table alignment=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJjZW50ZXIifX19&#8243; border_type=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJzb2xpZCJ9fX0=&#8221; woodmart_css_id=&#8221;685a9c708af41&#8243; 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table_column=&#8221;%5B%7B%22column_content%22%3A%22Property%22%2C%22column_cell_type%22%3A%22heading%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Definition%22%2C%22column_cell_type%22%3A%22heading%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Relation%20to%20Stress-Strain%20Curve%22%2C%22column_cell_type%22%3A%22heading%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Measurement%22%2C%22column_cell_type%22%3A%22heading%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%5D&#8221; woodmart_css_id=&#8221;685a9cec326a2&#8243; table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; 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woodmart_css_id=&#8221;685a9d0fe0959&#8243; table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjQ3LDIwMiwxNzIpIn19fQ==&#8221;][woodmart_table_row table_column=&#8221;%5B%7B%22column_content%22%3A%22Hardness%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Resistance%20to%20localized%20deformation%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Not%20directly%20on%20the%20curve%3B%20related%20to%20strength%20(higher%20yield%2FUTS%20%E2%86%92%20higher%20hardness)%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Indentation%20tests%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%5D&#8221; woodmart_css_id=&#8221;685a9d76762c6&#8243; table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjUxLDIyOCwyMTMpIn19fQ==&#8221;][woodmart_table_row table_column=&#8221;%5B%7B%22column_content%22%3A%22Hardening%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Increase%20in%20strength%20due%20to%20plastic%20deformation%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Observed%20as%20the%20upward%20slope%20in%20the%20plastic%20region%20(from%20yield%20strength%20to%20UTS)%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%2C%7B%22column_content%22%3A%22Slope%20in%20plastic%20region%22%2C%22column_cell_type%22%3A%22default%22%2C%22column_cell_span%22%3A%221%22%2C%22column_cell_row%22%3A%221%22%7D%5D&#8221; woodmart_css_id=&#8221;685a9dbbd7fb5&#8243; table_row_font_size=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJ0YWJsZXQiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9LCJtb2JpbGUiOnsidW5pdCI6InB4IiwidmFsdWUiOiIxOCJ9fX0=&#8221; table_row_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMCwwLDApIn19fQ==&#8221; table_row_bg_color=&#8221;eyJkZXZpY2VzIjp7ImRlc2t0b3AiOnsidmFsdWUiOiJyZ2IoMjQ3LDIwMiwxNzIpIn19fQ==&#8221;][\/woodmart_table]<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">Ductile VS Brittle stress strain curves<\/span><\/h2>\n<ul style=\"text-align: left;\">\n<li style=\"text-align: justify;\"><span style=\"font-size: 14pt;\"><strong>\uc5f0\uc131 \uc7ac\ub8cc:<\/strong> \uae08\uc18d\uacfc \uac19\uc740 \uc5f0\uc131 \uc7ac\ub8cc\uc758 \uacbd\uc6b0, \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud0c4\uc131 \uc601\uc5ed\uc5d0\uc11c \uc120\ud615\uc744 \ubcf4\uc774\uba70, \uadf8 \ub2e4\uc74c\uc5d0\ub294 \uc0c1\ub2f9\ud55c \uc18c\uc131 \uc601\uc5ed\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \uc774\ub294 \uc7ac\ub8cc\uac00 \uac00\ud574\uc9c4 \ud798\uc5d0 \ube44\ub840\ud558\uc5ec \uc608\uce21 \uac00\ub2a5\ud55c \ubc29\uc2dd\uc73c\ub85c \ubcc0\ud615\ub428\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc7ac\ub8cc\ub294 \ud30c\uad34\ub418\uae30 \uc804\uc5d0 \uc0c1\ub2f9\ud55c \ubcc0\ud615\uc744 \uacac\ub51c \uc218 \uc788\uc73c\ubbc0\ub85c, \ud558\uc911\uc744 \uc989\uc2dc \ud30c\uad34\ub418\uc9c0 \uc54a\uace0 \ud761\uc218\ud574\uc57c \ud558\ub294 \uad6c\uc870\ubb3c\uc5d0 \uc774\uc0c1\uc801\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-size: 14pt;\"><strong>\ucde8\uc131 \uc7ac\ub8cc:<\/strong> \ubc18\uba74, \uc138\ub77c\ubbf9\uacfc \uac19\uc740 \ucde8\uc131 \uc7ac\ub8cc\ub294 \ube44\uc120\ud615 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \ubcf4\uc785\ub2c8\ub2e4. \ucde8\uc131 \uc7ac\ub8cc\ub294 \ud30c\ub2e8 \uc804 \uc18c\uc131 \ubcc0\ud615\uc774 \uac70\uc758 \uc5c6\uac70\ub098 \uc804\ud600 \uc5c6\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc7ac\ub8cc\ub294 \ud30c\ub2e8\ub418\uae30 \uc804\uc5d0 \ubcc0\ud615\uc774 \uac70\uc758 \uc77c\uc5b4\ub098\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uc751\ub825\uc5d0 \ub300\ud55c \ub0b4\uc131\uc774 \uc57d\ud569\ub2c8\ub2e4. \ub610\ud55c, \ubcc4\ub2e4\ub978 \uc608\uace0 \uc5c6\uc774 \uac11\uc790\uae30 \ud30c\uc190\ub420 \uac00\ub2a5\uc131\uc774 \ub192\uc544 \uc5f0\uc131\uc774 \uc694\uad6c\ub418\ub294 \uc6a9\ub3c4\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc720\uc5f0\ud55c \uc7ac\ub8cc\uc640 \ucde8\uc131 \uc7ac\ub8cc\uc758 \uc751\ub825-\ubcc0\ud615 \uace1\uc120\uc758 \ucc28\uc774\ub294 \uadf8\ub9bc 8\uc5d0 \ub098\ud0c0\ub098 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33911\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Ductile-and-brittle-material-stress-strain-curve.png\" alt=\"\uc5f0\uc131 \ubc0f \ucde8\uc131 \uc7ac\ub8cc \uc751\ub825 \ubcc0\ud615\ub960 \uace1\uc120\" width=\"506\" height=\"460\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Ductile-and-brittle-material-stress-strain-curve.png 733w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Ductile-and-brittle-material-stress-strain-curve-300x273.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Ductile-and-brittle-material-stress-strain-curve-430x391.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Ductile-and-brittle-material-stress-strain-curve-62x56.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Ductile-and-brittle-material-stress-strain-curve-600x545.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Ductile-and-brittle-material-stress-strain-curve-725x659.png 725w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Ductile-and-brittle-material-stress-strain-curve-150x136.png 150w\" sizes=\"(max-width: 506px) 100vw, 506px\" \/><\/p>\n<p style=\"text-align: center;\">\uadf8\ub9bc 8: \uc5f0\uc131 \ubc0f \ucde8\uc131 \uc7ac\ub8cc \uc751\ub825 \ubcc0\ud615\ub960 \uace1\uc120 [<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/brittleness\/\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ub2f5\uc7a5<\/span><\/a>\uc5d0\ud504]<\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">Residual Stresses and Their Impact on the Stress\u2013Strain Curve<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">In real engineering components, the stress state of a material is rarely zero before external loads are applied. Residual stresses are self-equilibrated stresses that remain locked inside a material after manufacturing processes such as welding, machining, heat treatment, cold working, or additive manufacturing. These stresses exist without any external force and play a crucial role in how a material responds during mechanical loading.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-47330 size-full\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Residual-stress-stress-strain-curve-CAE-Assistant.png\" alt=\"Residual stress stress-strain curve-CAE Assistant\" width=\"612\" height=\"347\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Residual-stress-stress-strain-curve-CAE-Assistant.png 612w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Residual-stress-stress-strain-curve-CAE-Assistant-300x170.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Residual-stress-stress-strain-curve-CAE-Assistant-430x244.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Residual-stress-stress-strain-curve-CAE-Assistant-18x10.png 18w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Residual-stress-stress-strain-curve-CAE-Assistant-62x35.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Residual-stress-stress-strain-curve-CAE-Assistant-600x340.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Residual-stress-stress-strain-curve-CAE-Assistant-150x85.png 150w\" sizes=\"(max-width: 612px) 100vw, 612px\" \/><\/span><\/p>\n<p style=\"text-align: center;\">Figure 9 :Residual stress stress-strain curve [<a href=\"https:\/\/www.researchgate.net\/figure\/Figure-A-1-Strain-level-and-residual-stress_fig32_265615227?__cf_chl_tk=ojb7oy_9sLZQHDf6RSZ0fDghEpDZ.M3BwAd.J3kYocI-1769509846-1.0.1.1-NQPhokLKDzRkDB723aPeb9ArA8Y5Z_ZuTmOmWq_Y0qI\" rel=\"nofollow noopener\" target=\"_blank\">\ucc38\uc870<\/a>]<\/p>\n<h3><span style=\"font-size: 14pt;\">1. Effect on the Stress\u2013Strain Curve<\/span><\/h3>\n<p><span style=\"font-size: 14pt;\">Residual stresses effectively modify the initial stress state of a material before loading begins. As a result, the measured stress\u2013strain curve may differ from the intrinsic material response. Tensile residual stresses can cause apparent early yielding, reducing the observed yield strength, while compressive residual stresses may delay yielding and increase the apparent elastic range. Importantly, the material itself has not changed only the starting point on the stress\u2013strain path has shifted due to internal stresses.<\/span><br \/>\n<span style=\"font-size: 14pt;\">This explains why two specimens made of the same material but processed differently may exhibit noticeably different stress\u2013strain responses.<\/span><\/p>\n<h3><span style=\"font-size: 14pt;\">2. Loading and Unloading Path: Non-Zero Residual Strain<\/span><\/h3>\n<p><span style=\"font-size: 14pt;\">When a material undergoes plastic deformation and is subsequently unloaded, it does not return to zero strain. The remaining deformation is known as residual strain, which is directly linked to residual stresses. The loading\u2013unloading path on the stress\u2013strain curve forms a hysteresis loop, clearly demonstrating that strain recovery is incomplete once plasticity occurs. This behavior is essential for understanding forming processes, springback in sheet metal forming, and dimensional inaccuracies in manufactured parts.<\/span><\/p>\n<h3><span style=\"font-size: 14pt;\">3. Why Residual Stress Matters in Engineering Analysis<\/span><\/h3>\n<p><span style=\"font-size: 14pt;\">Ignoring residual stresses can lead to inaccurate predictions of yield, fatigue life, and failure. In finite element analysis (FEA), residual stresses are often introduced as initial stress or strain fields to more realistically simulate behavior. Understanding how residual stresses influence the stress\u2013strain curve bridges the gap between ideal material testing and actual structural performance.<\/span><\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">Different Materials, Different Curves: Metal, Polymer, and Ceramic<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">Metals, polymers, and ceramics each exhibit different types of stress-strain curves. Metals typically show a clear elastic region followed by plastic deformation. Polymers, however, may exhibit more complex behavior, often showing a significant amount of elasticity before yielding. Ceramics, being more brittle, tend to have a steep, non-linear curve, with a sharp fracture point (See figure 10). <\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">Figure 11 shows the difference in the toughness of these materials.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33912\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Typical-Stress-strain-Curve-for-the-three-classes-of-materials.jpg\" alt=\"3\uac00\uc9c0 \uc7ac\ub8cc \uc885\ub958\uc5d0 \ub300\ud55c \uc77c\ubc18\uc801\uc778 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\" width=\"464\" height=\"368\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Typical-Stress-strain-Curve-for-the-three-classes-of-materials.jpg 640w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Typical-Stress-strain-Curve-for-the-three-classes-of-materials-300x238.jpg 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Typical-Stress-strain-Curve-for-the-three-classes-of-materials-430x341.jpg 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Typical-Stress-strain-Curve-for-the-three-classes-of-materials-62x49.jpg 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Typical-Stress-strain-Curve-for-the-three-classes-of-materials-600x476.jpg 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Typical-Stress-strain-Curve-for-the-three-classes-of-materials-150x119.jpg 150w\" sizes=\"(max-width: 464px) 100vw, 464px\" \/><\/p>\n<p style=\"text-align: center;\">Figure 10: Typical Stress-strain Curve for the three classes of materials [<a href=\"https:\/\/www.researchgate.net\/figure\/Typical-Stress-strain-Curve-for-the-three-classes-of-materials-16_fig4_344130951\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33913\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials.png\" alt=\"3\uac00\uc9c0 \uc7ac\ub8cc\uc758 \uc778\uc131 \ube44\uad50\" width=\"668\" height=\"252\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials.png 840w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials-300x113.png 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials-430x162.png 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials-768x290.png 768w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials-62x23.png 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials-600x226.png 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials-725x274.png 725w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Comparison-of-toughness-for-the-three-classes-of-materials-150x57.png 150w\" sizes=\"(max-width: 668px) 100vw, 668px\" \/><\/p>\n<p style=\"text-align: center;\">Figure 11: Comparison of toughness for the three classes of materials [<a href=\"https:\/\/www.e-education.psu.edu\/matse81\/node\/2105\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc7ac\ub8cc\uc758 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \uc774\ud574\ud558\ub294 \uac83\uc740 \uac01 \uace1\uc120\uc774 \ud2b9\uc815 \uc7ac\ub8cc \ubaa8\ub378\uc5d0 \ub300\uc751\ud558\uae30 \ub54c\ubb38\uc5d0 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. Abaqus\uc640 \uac19\uc740 FEA \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0\uc11c \uc774\ub7ec\ud55c \uac70\ub3d9\uc744 \uc815\ud655\ud558\uac8c \ubaa8\ub378\ub9c1\ud558\ub294 \uac83\uc740 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc2dc\ubbac\ub808\uc774\uc158 \uacb0\uacfc\ub97c \uc5bb\ub294 \ub370 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \ub2e4\ud589\ud788 Abaqus\ub294 \ud3ec\uad04\uc801\uc778 \uc7ac\ub8cc \ubaa8\ub378 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub97c \uc81c\uacf5\ud558\uba70, \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ube14\ub85c\uadf8\uc5d0\uc11c \ud655\uc778\ud558\uc2e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4., <strong>\u201c<\/strong><span style=\"color: #0000ff;\">Abaqus \uc7ac\ub8cc \ubaa8\ub378\uc5d0 \ub300\ud55c \ubaa8\ub4e0 \uc815\ubcf4<\/span><strong>.&quot;\u201d<\/strong><\/span><\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">The Role of Temperature and Strain Rate on the Curve<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc628\ub3c4\uc640 \ubcc0\ud615\ub960\uc740 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc5d0 \uc0c1\ub2f9\ud55c \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uace0\uc628\uc5d0\uc11c\ub294 \uae08\uc18d\uc774 \ub354 \uc5f0\uc131\uc774 \ub192\uc544\uc9c0\ub294 \ubc18\uba74, \uc800\uc628\uc5d0\uc11c\ub294 \ucde8\uc131\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c, \uc751\ub825\uc774 \uac00\ud574\uc9c0\ub294 \uc18d\ub3c4\ub294 \uc7ac\ub8cc\uc758 \uac70\ub3d9\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uccd0 \uc2e4\uc81c \ud658\uacbd\uc5d0\uc11c \uc7ac\ub8cc\uc758 \uc131\ub2a5\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">How to conduct a stress strain test: A step by step guide<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825-\ubcc0\ud615\ub960 \uc2dc\ud5d8\uc740 \uc7ac\ub8cc\uac00 \uc751\ub825\uc744 \ubc1b\uc558\uc744 \ub54c \uc5b4\ub5bb\uac8c \uac70\ub3d9\ud558\ub294\uc9c0 \uc774\ud574\ud558\uae30 \uc704\ud574 \uc218\ud589\ub429\ub2c8\ub2e4. \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \uc751\ub825-\ubcc0\ud615\ub960 \uc2dc\ud5d8 \uc720\ud615\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<ul style=\"text-align: left;\">\n<li style=\"text-align: justify;\"><span style=\"font-size: 14pt;\"><strong>\uc778\uc7a5 \uc2dc\ud5d8:<\/strong> This test involves applying a pulling force to a material until it stretches and eventually breaks. It is used to determine the material&#8217;s tensile strength, yield strength, and ductility. It is necessary to produce test samples and then use the tensile testing machine as shown in figures 12 and 13.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33914\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-sample.webp\" alt=\"\uc778\uc7a5 \uc2dc\ud5d8 \uc0d8\ud50c\" width=\"431\" height=\"527\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-sample.webp 735w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-sample-245x300.webp 245w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-sample-401x491.webp 401w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-sample-62x76.webp 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-sample-600x735.webp 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-sample-725x888.webp 725w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-sample-150x184.webp 150w\" sizes=\"(max-width: 431px) 100vw, 431px\" \/><\/p>\n<p style=\"text-align: center;\">Figure 12: Tensile test sample [<a href=\"https:\/\/www.tensilemillcnc.com\/tensile-testing-equipment\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33915\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device.jpg\" alt=\"\uc778\uc7a5 \uc2dc\ud5d8 \uc7a5\uce58\" width=\"796\" height=\"398\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device.jpg 1280w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device-300x150.jpg 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device-1024x512.jpg 1024w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device-430x215.jpg 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device-768x384.jpg 768w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device-62x31.jpg 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device-600x300.jpg 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device-725x363.jpg 725w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Tensile-test-device-150x75.jpg 150w\" sizes=\"(max-width: 796px) 100vw, 796px\" \/><\/p>\n<p style=\"text-align: center;\">Figure 13: Tensile test device [<a href=\"https:\/\/www.instron.com\/en\/resources\/test-types\/tensile-test\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #0000ff;\">\ucc38\uc870<\/span><\/a>]<\/p>\n<ul>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\uc555\ucd95 \uc2dc\ud5d8:<\/strong> \uc774 \uc2dc\ud5d8\uc5d0\uc11c\ub294 \uc7ac\ub8cc\uc5d0 \uae38\uc774 \ubc29\ud5a5\uc73c\ub85c \ud798\uc744 \uac00\ud558\uc5ec \uc555\ucd95\ud569\ub2c8\ub2e4. \uc774 \uc2dc\ud5d8\uc740 \uc7ac\ub8cc\uac00 \uc555\ucd95\ub825\uc5d0 \uc5b4\ub5bb\uac8c \ubc18\uc751\ud558\ub294\uc9c0 \ud30c\uc545\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\uba70, \ucf58\ud06c\ub9ac\ud2b8\uc640 \uac19\uc740 \uc7ac\ub8cc\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>\uc804\ub2e8 \uc2dc\ud5d8:<\/strong> \uc804\ub2e8 \uc2dc\ud5d8\uc740 \uc7ac\ub8cc \ud45c\uba74\uc5d0 \ud3c9\ud589\ud558\uac8c \ud798\uc774 \uac00\ud574\uc9c8 \ub54c \ubc1c\uc0dd\ud558\ub294 \uc804\ub2e8 \uc751\ub825\uc5d0 \ub300\ud55c \uc7ac\ub8cc\uc758 \ubc18\uc751\uc744 \uce21\uc815\ud558\uae30 \uc704\ud574 \uc218\ud589\ub429\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\ud14c\uc2a4\ud2b8 \uc124\uc815: \ud544\uc694\ud55c \uc7a5\ube44<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825-\ubcc0\ud615 \uc2dc\ud5d8\uc744 \uc218\ud589\ud558\ub824\uba74 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c \uc7a5\ube44\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/span><\/p>\n<ul style=\"text-align: left;\">\n<li><span style=\"font-size: 14pt;\">\uc2dc\ud5d8\uae30: \uc778\uc7a5\ub825\uc774\ub098 \uc555\ucd95\ub825\uc744 \uac00\ud558\uace0 \ubcc0\ud615\uc744 \uce21\uc815\ud560 \uc218 \uc788\ub294 \ub9cc\ub2a5 \uc2dc\ud5d8\uae30(UTM)\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">\uc2e0\uc7a5\uacc4: \uc2dc\ud5d8 \uc911 \uc0d8\ud50c\uc758 \ubcc0\ud615\uc774\ub098 \ubcc0\ud615\ub960\uc744 \uce21\uc815\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">\uc2dc\ud3b8: \uc2dc\ud5d8 \ub300\uc0c1 \uc7ac\ub8cc\uc758 \ud45c\uc900 \uc0d8\ud50c\ub85c, \uc77c\ubc18\uc801\uc73c\ub85c \uc6d0\ud1b5\ud615\uc774\ub098 \uc9c1\uc0ac\uac01\ud615 \uc2dc\ud3b8 \ubaa8\uc591\uc744 \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<li><span style=\"font-size: 14pt;\">\uc124\uce58\uc5d0\ub294 \uc2dc\ud3b8\uc744 \uae30\uacc4 \uadf8\ub9bd\uc5d0 \ubd80\ucc29\ud558\uace0, \uce21\uc815\uac12\uc774 \ubd80\uc815\ud655\ud558\uc9c0 \uc54a\ub3c4\ub85d \uc815\ub82c\uc744 \uc815\ud655\ud558\uac8c \ud558\ub294 \uc791\uc5c5\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4. \ud798\uacfc \ubcc0\ud615\uc744 \uc815\ubc00\ud558\uac8c \uce21\uc815\ud558\ub824\uba74 \uc2dc\ud5d8\uae30\uc758 \uad50\uc815\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\ub370\uc774\ud130 \uc774\ud574 \ubc0f \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120 \uadf8\ub9ac\uae30<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc2dc\ud5d8\uc774 \uc218\ud589\ub418\uba74 \ub370\uc774\ud130\ub294 \ud798 \ub300 \ubcc0\uc704\ub85c \uae30\ub85d\ub418\uace0, \uc774\ub97c \uc751\ub825 \ub300 \ubcc0\ud615\ub960\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. \uadf8 \uacb0\uacfc, \ud558\uc911 \ud558\uc5d0\uc11c \uc7ac\ub8cc\uc758 \uac70\ub3d9\uc744 \ubcf4\uc5ec\uc8fc\ub294 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc774 \uc0dd\uc131\ub429\ub2c8\ub2e4. \uc774 \uace1\uc120\uc740 \uc7ac\ub8cc\uc758 \ud0c4\uc131 \ubc0f \uc18c\uc131 \uc601\uc5ed, \ud56d\ubcf5 \uac15\ub3c4, \ucd5c\ub300 \uc778\uc7a5 \uac15\ub3c4, \uadf8\ub9ac\uace0 \ud30c\uad34 \uc9c0\uc810\uc5d0 \ub300\ud55c \ud1b5\ucc30\ub825\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">Stress Strain curve: Real world applications and examples<\/span><\/h2>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\uad6c\uc870 \uacf5\ud559\uc758 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uad6c\uc870 \uacf5\ud559\uc5d0\uc11c \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \uc2e4\uc81c \uad6c\uc870\ubb3c\uc5d0\uc11c \ubc1b\ub294 \ud558\uc911\uc5d0 \ub300\ud574 \uc7ac\ub8cc\uac00 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub294\uc9c0 \uc608\uce21\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774 \uace1\uc120\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \uad6c\uc870\ubb3c\uc758 \uac01 \ubd80\ubd84\uc5d0 \uc801\ud569\ud55c \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud558\uc5ec \ud544\uc694\ud55c \ud558\uc911\uc744 \ud30c\uc190 \uc5c6\uc774 \uacac\ub51c \uc218 \uc788\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc774 \uace1\uc120\uc740 \uad50\ub7c9\uc5d0 \uc801\ud569\ud55c \uac15\uc7ac \uc885\ub958\ub098 \uac74\ubb3c \uae30\ucd08\uc5d0 \uc801\ud569\ud55c \ucf58\ud06c\ub9ac\ud2b8 \ubc30\ud569\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc774 \uace1\uc120\uc740 \uad6c\uc870\ubb3c\uc758 \uc548\uc804 \uc5ec\uc720\ub97c \ud655\ubcf4\ud558\ub294 \ub370\uc5d0\ub3c4 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \uc7ac\ub8cc\uc758 \ucd5c\ub300 \uc778\uc7a5 \uac15\ub3c4\uc640 \ud56d\ubcf5 \uac15\ub3c4\ub97c \ud30c\uc545\ud568\uc73c\ub85c\uc368 \ud55c\uacc4\ub97c \uc798 \ub118\ub098\ub4dc\ub294 \ubd80\ud488\uc744 \uc124\uacc4\ud558\uc5ec \uce58\uba85\uc801\uc778 \uace0\uc7a5\uc744 \ubc29\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\ud56d\uacf5\uc6b0\uc8fc \ubc0f \uc790\ub3d9\ucc28 \uc0b0\uc5c5\uc758 \uc751\uc6a9 \ubd84\uc57c<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ud56d\uacf5\uc6b0\uc8fc \ubd84\uc57c\uc5d0\uc11c \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \uadf9\ud55c \uc870\uac74\uc744 \uacac\ub51c \uc218 \uc788\ub294 \uac00\ubccd\uc9c0\ub9cc \uac15\ud55c \uc18c\uc7ac\ub97c \uc120\ud0dd\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \ud56d\uacf5\uae30 \ubd80\ud488\uc740 \ub192\uc740 \uc778\uc7a5\ub825\uacfc \uae09\uaca9\ud55c \uc751\ub825 \ubcc0\ud654\ub97c \ubaa8\ub450 \uacac\ub38c\uc57c \ud558\ubbc0\ub85c, \ud2f0\ud0c0\ub284\uc774\ub098 \uc54c\ub8e8\ubbf8\ub284 \ud569\uae08\uacfc \uac19\uc740 \uc18c\uc7ac\ub294 \uc6b0\uc218\ud55c \uc751\ub825-\ubcc0\ud615\ub960 \ud2b9\uc131\uc744 \ubc14\ud0d5\uc73c\ub85c \uc120\ud0dd\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ub9c8\ucc2c\uac00\uc9c0\ub85c \uc790\ub3d9\ucc28 \uacf5\ud559\uc5d0\uc11c \uc7ac\ub8cc\uc758 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \uc774\ud574\ud558\uba74 \uc790\ub3d9\ucc28 \ud504\ub808\uc784\uacfc \ubd80\ud488\uc774 \ucda9\ub3cc \uc870\uac74\uc5d0\uc11c \uc548\uc804\ud558\uace0 \ub0b4\uad6c\uc131\uc774 \ubcf4\uc7a5\ub429\ub2c8\ub2e4. \uc7ac\ub8cc\ub294 \ud0d1\uc2b9\uc790\uc5d0\uac8c \ud574\ub97c \ub07c\uce58\uc9c0 \uc54a\uc73c\uba74\uc11c \ucda9\uaca9\uc744 \ud761\uc218\ud560 \ub9cc\ud07c \uac15\ud574\uc57c \ud558\uc9c0\ub9cc, \ub3d9\uc2dc\uc5d0 \uc5f0\ube44\ub97c \ubcf4\uc7a5\ud560 \ub9cc\ud07c \uac00\ubcbc\uc6cc\uc57c \ud569\ub2c8\ub2e4.<\/span><\/p>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc774 \uc18c\ube44\uc790 \uc81c\ud488\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \ub300\uaddc\ubaa8 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c\ub9cc \uc911\uc694\ud55c \uac83\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc2a4\ub9c8\ud2b8\ud3f0, \uac00\uad6c, \ud3ec\uc7a5\uc7ac\uc640 \uac19\uc740 \uc18c\ube44\uc7ac\uc5d0\uc11c\ub3c4 \ud575\uc2ec \uc694\uc18c\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc81c\ud488\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc7ac\ub8cc\ub294 \ub0b4\uad6c\uc131\uacfc \ube44\uc6a9 \ud6a8\uc728\uc131\uc758 \uade0\ud615\uc744 \ub9de\ucdb0\uc57c \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \uc2a4\ub9c8\ud2b8\ud3f0 \ud654\uba74\uc758 \uac15\ub3c4\uc640 \uc720\uc5f0\uc131\uc744 \uce21\uc815\ud558\uc5ec \uc27d\uac8c \uae68\uc9c0\uc9c0 \uc54a\uace0 \ucda9\uaca9\uc5d0 \uacac\ub51c \uc218 \uc788\ub294\uc9c0 \ud655\uc778\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/span><\/p>\n<h3>Stress-Strain Graph in ABAQUS<\/h3>\n<p><iframe title=\"\ud83c\udfa5 How to Plot Stress-Strain Curve in Abaqus | Step-by-Step Tutorial\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/yDKzku9cFPg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">Common Misunderstandings about the Stress-Strain Curve<\/span><\/h2>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">\uc77c\ubd80 \uc7ac\ub8cc\uac00 \ub2e8\uc21c \uc751\ub825-\ubcc0\ud615 \uace1\uc120\uc744 \ub530\ub974\uc9c0 \uc54a\ub294 \uc774\uc720<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\ubaa8\ub4e0 \uc7ac\ub8cc\uac00 \ub2e8\uc21c\ud55c \uc120\ud615 \uc751\ub825-\ubcc0\ud615\ub960 \uac70\ub3d9\uc744 \ubcf4\uc774\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \ud2b9\uc815 \ud3f4\ub9ac\uba38\ub098 \ubcf5\ud569\uc7ac\uc640 \uac19\uc740 \uc77c\ubd80 \uc7ac\ub8cc\ub294 \ubd84\uc790 \uad6c\uc870, \uc628\ub3c4 \ubbfc\uac10\ub3c4, \ub610\ub294 \ud558\uc911 \uc18d\ub3c4\uc640 \uac19\uc740 \uc694\uc778\uc73c\ub85c \uc778\ud574 \ub354 \ubcf5\uc7a1\ud55c \uac70\ub3d9\uc744 \ubcf4\uc785\ub2c8\ub2e4. <\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">These materials may exhibit non-linear stress-strain curves or even unique failure modes that don\u2019t align with the typical expectations of ductile or brittle materials. Figure 14 shows a stress strain curve for a composite material with different percentages of reinforcing filler (Date palm waste (DPW)) in a polypropylene matrix (PP). It can be found that the difference in the reinforcing changes the stress strain curve.<\/span><\/p>\n<p style=\"text-align: left;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33916\" src=\"https:\/\/caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress\u2013strain-curves-of-composite-materials-with-different-percentages-of-reinforcing-filler.jpg\" alt=\"\ubcf4\uac15\uc7ac \ucda9\uc804\uc7ac\uc758 \ube44\uc728\uc774 \ub2e4\ub978 \ubcf5\ud569\uc7ac\ub8cc\uc758 \uc751\ub825-\ubcc0\ud615 \uace1\uc120\" width=\"615\" height=\"389\" srcset=\"https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress\u2013strain-curves-of-composite-materials-with-different-percentages-of-reinforcing-filler.jpg 640w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress\u2013strain-curves-of-composite-materials-with-different-percentages-of-reinforcing-filler-300x190.jpg 300w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress\u2013strain-curves-of-composite-materials-with-different-percentages-of-reinforcing-filler-430x272.jpg 430w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress\u2013strain-curves-of-composite-materials-with-different-percentages-of-reinforcing-filler-62x39.jpg 62w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress\u2013strain-curves-of-composite-materials-with-different-percentages-of-reinforcing-filler-600x380.jpg 600w, https:\/\/dev.caeassistant.com\/wp-content\/uploads\/2025\/05\/Stress\u2013strain-curves-of-composite-materials-with-different-percentages-of-reinforcing-filler-150x95.jpg 150w\" sizes=\"(max-width: 615px) 100vw, 615px\" \/><\/p>\n<p style=\"text-align: center;\">Figure 14: Stress\u2013strain curves of composite materials with different percentages of reinforcing filler [<span style=\"color: #0000ff;\">\ucc38\uc870<\/span>]<\/p>\n<p style=\"text-align: justify;\"><strong><span style=\"font-size: 14pt;\">\uc798\ubabb\ub41c \uc9c4\uc220\uacfc \uc0ac\uc2e4: \uc77c\ubc18\uc801\uc778 \uc624\ud574\uc5d0 \ub300\ud55c \ubc18\ubc15<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">\uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc5d0 \ub300\ud55c \uc624\ud574\ub294 \uc5ec\ub7ec \uac00\uc9c0\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc5b4\ub5a4 \uc0ac\ub78c\ub4e4\uc740 \uc778\uc7a5 \uac15\ub3c4\uac00 \ub192\uc744\uc218\ub85d \ud56d\uc0c1 \ub354 \uc88b\uc740 \uc7ac\ub8cc\ub77c\uace0 \uc0dd\uac01\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uac15\ub3c4\uac00 \ub192\uc740 \uc7ac\ub8cc\uac00 \ubaa8\ub4e0 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \ud2b9\uc815 \uc6a9\ub3c4\uc5d0\uc11c \uc7ac\ub8cc\uac00 \ud544\uc694\ud55c \uc131\ub2a5\uc744 \ubc1c\ud718\ud558\ub3c4\ub85d \ud558\ub824\uba74 \uc5f0\uc131\uacfc \uc778\uc131\uc744 \ud3ec\ud568\ud55c \uc804\uccb4 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/span><\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6600;\">\uacb0\ub860<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uae30\uacc4\uacf5\ud559 \uc5d4\uc9c0\ub2c8\uc5b4\ub85c\uc11c \uc774 \uae00\uacfc \uac19\uc740 \uae30\ubcf8 \uac1c\ub150\uc744 \uc54c\uac8c \ub41c \ud6c4\uc5d0\ub294 &quot;\uc5d0 \ub300\ud55c \uae00&quot;\ub3c4 \uc77d\uc5b4\ubcf4\uc2dc\uae30\ub97c \uac15\ub825\ud788 \ucd94\ucc9c\ud569\ub2c8\ub2e4.\u201c<a href=\"https:\/\/caeassistant.com\/blog\/ai-in-mechanical-engineering-video\/\">\uae30\uacc4\uacf5\ud559 \ubd84\uc57c\uc5d0\uc11c \uc778\uacf5\uc9c0\ub2a5\uc758 \uc751\uc6a9<\/a>\u201c&quot;.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">\uc774 \uae00\uc5d0\uc11c\ub294 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc758 \ub9e4\uac1c\ubcc0\uc218\uc640 \ub2e4\uc591\ud55c \uc7ac\ub8cc \ud2b9\uc131\uacfc \uad00\ub828\ub41c \ub2e4\uc591\ud55c \uc720\ud615\uc758 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \ud3ec\ud568\ud55c \uc8fc\uc694 \uc8fc\uc81c\ub97c \ub17c\uc758\ud588\uc2b5\ub2c8\ub2e4. 0.2% \uc624\ud504\uc14b \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc5d0\uc11c \ud56d\ubcf5 \uac15\ub3c4\ub97c \uacb0\uc815\ud558\ub294 \ubc29\ubc95\uc744 \ub17c\uc758\ud588\uc2b5\ub2c8\ub2e4. \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uacfc \uc9c4\uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc744 \ud3ec\ud568\ud55c \uc751\ub825 \ubc0f \ubcc0\ud615\ub960\uc758 \uc720\ud615\uc744 \uc18c\uac1c\ud588\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc744 \ud1b5\ud574 \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc774 \uc7ac\ub8cc \uacfc\ud559 \ubc0f \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc124\uacc4\uc5d0 \ud544\uc218\uc801\uc778 \ub3c4\uad6c\uc784\uc744 \uc54c\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc751\ub825 \ud558\uc5d0\uc11c \uc7ac\ub8cc\uc758 \uac70\ub3d9\uc744 \uc774\ud574\ud568\uc73c\ub85c\uc368 \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \uc801\ud569\ud55c \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud558\uace0, \uc7ac\ub8cc \ud30c\uc190\uc744 \uc608\uce21\ud558\uace0, \uc548\uc804\ud558\uace0 \uae30\ub2a5\uc801\uc778 \uc81c\ud488\uc744 \uc124\uacc4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc751\ub825-\ubcc0\ud615\ub960 \uace1\uc120\uc740 \ub2e4\uc591\ud55c \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ud504\ub85c\uc81d\ud2b8\uc758 \uc131\uacf5\uc744 \ubcf4\uc7a5\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/span><\/p>\n<h2><span style=\"color: #ff6600;\">Stress Strain Curves FAQs<\/span><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >1. What is the difference between stress and strain?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><p>Stress is defined as the internal force applied per unit area of a material (measured in Pascals), whereas strain is the dimensionless measure of the resulting deformation. Together, they describe how a material resists or yields to external loading conditions.<\/p>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >2. How does Hooke\u2019s Law apply to material stress and strain?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><p>Hooke\u2019s Law states that within the elastic limit, stress is directly proportional to strain, creating a straight line on the graph. The slope of this linear relationship is known as Young\u2019s Modulus, which serves as a primary measure of a material&#8217;s stiffness.<\/p>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >3. What happens at the yield point of a stress-strain curve?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><p>The yield point marks the critical transition where a material moves from elastic behavior to plastic behavior. Once the stress exceeds this point, the material will no longer return to its original form and begins to undergo permanent deformation.<\/p>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >4. What is the 0.2% offset method used for in engineering?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><p>This method is used to determine the yield strength of materials that do not show a clear, distinct yield point on the curve. Engineers draw a line parallel to the elastic region starting at 0.002 strain; the point where this line intersects the curve is defined as the yield strength.<\/p>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >5. How can you identify a brittle vs. a ductile material from a graph?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><p>Ductile materials show a long plastic region with significant deformation and necking before they eventually break. Brittle materials, such as glass or ceramics, exhibit almost no plastic deformation and fracture suddenly very shortly after reaching their elastic limit.<\/p>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >6. How do you identify the elastic region of stress strain curve behavior?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><p>The elastic region is the initial, linear portion of the graph where the material deforms under load but returns to its original shape once the stress is removed. It is characterized by a constant ratio between stress and strain, which allows for the calculation of the material&#8217;s stiffness.<\/p>\n<\/div><\/div><div  class=\"vc_do_toggle vc_toggle vc_toggle_default vc_toggle_color_default  vc_toggle_size_md\"><div class=\"vc_toggle_title\"><h3 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >7. What happens when a material enters the plastic region of stress strain curve graphs?<\/h3><i class=\"vc_toggle_icon\"><\/i><\/div><div class=\"vc_toggle_content\"><p>Once a material enters the plastic region, it undergoes permanent, non-reversible deformation because the applied stress has exceeded the yield point. Even after the load is completely removed, the material will retain a permanent change in its physical dimensions or &#8220;set.&#8221;<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"What is\u00a0stress strain curve? A stress strain curve is a graphical representation in material science that illustrates the relationship between stress (applied force per unit area) and strain (resulting deformation). Engineers analyze this curve to determine critical mechanical properties, including elasticity, yield strength, and ultimate tensile strength. Understanding how materials behave under mechanical load is [...]","protected":false},"author":250,"featured_media":34029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67],"tags":[],"class_list":["post-33860","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/posts\/33860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/users\/250"}],"replies":[{"embeddable":true,"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/comments?post=33860"}],"version-history":[{"count":18,"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/posts\/33860\/revisions"}],"predecessor-version":[{"id":47326,"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/posts\/33860\/revisions\/47326"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/media\/34029"}],"wp:attachment":[{"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/media?parent=33860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/categories?post=33860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dev.caeassistant.com\/ko\/wp-json\/wp\/v2\/tags?post=33860"}],"curies":[{"name":"\uc6cc\ub4dc\ud504\ub808\uc2a4","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}