超弹性心血管支架的Abaqus模拟

In this package, we discuss vascular stents and their modeling in Abaqus. Since accurately modeling a stent requires defining its superelastic material behavior, we will begin by explaining the superelastic behavior found in shape memory alloys, and then, we explain how to implement this material model in Abaqus, using two methods: the ABQ_SUPER_ELASTIC library and Abaqus’s own built-in library. Next, we guide you through several workshops to help you master modeling problems related to stents in Abaqus. These workshops cover key scenarios, including:

支架内球囊的扩张
血管内支架的弯曲
从血管中取出支架

所有这些内容都将通过一系列课程和四个实践工作坊进行讲解。.

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课程内容

超弹性心血管支架的Abaqus模拟

产品 Informations

支架模拟简介

在本课程中，您将学习如何在 Abaqus 中对心血管支架进行建模。为了帮助您轻松理解相关概念，我们首先解释什么是血管支架及其在医学中的应用。通过这部分内容，您将初步了解该主题的重要性。之后，我们将解释用于扩张体内血管的支架的组成部分、其保持动脉畅通的工作原理以及必须具备的特性。在您熟悉了该主题之后，我们将讨论支架通常由哪些材料制成，并进行更详细的解释。.

接下来，我们详细解释了形状记忆合金 (SMA) 和镍钛合金的材料行为概念。我们描述了它们的行为、参数和特性，以便您了解本教程中将在 Abaqus 中建模的材料。由于其复杂性，我们可以将这部分内容视为培训的主要章节之一。.

接下来，我们将讲解如何将支架的行为输入到 Abaqus 中。首先，我们将简要说明第一种方法是开发一个 UMAT 子程序，但这非常复杂。第二种方法（适用于 2023 及更早版本的 Abaqus）是使用一个名为 ABQ_SUPER_ELASTIC 的基于 UMAT 代码的库。我们将介绍其所有参数以及使用方法。最后，作为第三种方法，我们将展示在较新版本的 Abaqus 中，您可以直接在 Abaqus 自带的材料库中定义支架的行为，而无需使用其他工具。在本节结束时，您将掌握如何在 Abaqus 中添加材料行为。.

心血管支架及其在生物医学工程中的应用概述

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形状记忆合金（SMA）简介

在Abaqus中模拟支架的材料行为

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研讨会 1：支架内球囊扩张，假设支架为线性弹性材料（静态求解器）

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