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AN OVERVIEW OF CONSTITUTIVE MODELS FOR SHAPE MEMORY ALLOYS

机译:形状记忆合金的本构模型概述

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摘要

The remarkable properties of shape memory alloys have facilitated their applications in many areas of technology. The purpose of this paper is to present an overview of thermo-mechanical behavior of these alloys, discussing the main constitutive models for their mathematical description. Metallurgical features and engineering applications are addressed as an introduction. Afterwards, five phenomenological theories are presented. In general, these models capture the general thermomechanical behavior of shape memory alloys, characterized by pseudoelasticity, shape memory effect, phase transformation phenomenon due to temperature variation, and internal subloops due to incomplete phase transformations.
机译:形状记忆合金的卓越性能促进了它们在许多技术领域中的应用。本文的目的是概述这些合金的热机械行为,并讨论其数学描述的主要本构模型。简介介绍了冶金功能和工程应用。之后,提出了五种现象学理论。通常,这些模型捕获了形状记忆合金的一般热力学行为,其特征为拟弹性,形状记忆效应,温度变化引起的相变现象以及相转变不完全引起的内部子回路。

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  • 来源
    《Mathematical Problems in Engineering》 |2006年第4期|p.6.1-6.30|共30页
  • 作者单位

    Department of Mechanical Engineering, Alberto Luiz Coimbra Institute-Graduate School and Research in Engineering (COPPE), Federal University of Rio de Janeiro, P.O. Box 68503, 21941-972 Rio de Janeiro, RJ, Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程数学;
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