Analytical Model of Shape Memory Alloy Helical Springs

Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation Pub Date : 2018-09-10 DOI:10.1115/SMASIS2018-8075

W. Zaki, N. V. Viet

引用次数: 3

Abstract

A new analytical model is proposed for superelastic helical SMA springs subjected to axial loading. The model is derived based on the ZM constitutive model for SMAs and is applicable to springs with index greater than 4 and pitch angle greater than 15°, which are common specifications in engineering applications. The analytical axial force-deformation relation for the helical spring is derived taking into account phase transformation within the SMA and the model is validated against 3D finite element analysis results.

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形状记忆合金螺旋弹簧的解析模型

提出了一种轴向载荷作用下超弹性螺旋SMA弹簧的解析模型。该模型是基于sma的ZM本构模型建立的，适用于工程应用中常用的折射率大于4、俯仰角大于15°的弹簧。推导了考虑SMA内相变的螺旋弹簧轴向力-变形解析关系，并通过三维有限元分析结果对模型进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation

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