基于ANSYS的NiTi合金螺旋弹簧的力-位移关系：超弹性和形状记忆效应

Q2 Engineering

International Review of Applied Sciences and Engineering Pub Date : 2022-03-25 DOI:10.1556/1848.2021.00389

Chayma El Mtili, A. Khamlichi, Loubna Hessissen, Hafiz Muhammad Waqas Badar

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引用次数: 2

摘要

形状记忆合金是一种智能材料，具有显著的性能，促进了其在各种创新应用中的应用。本文采用有限元方法研究了镍钛螺旋弹簧的形状记忆效应和超弹性行为。Auricchio提出的三维本构模型已通过ANSYS®Workbench 2020 R2的内置库来模拟镍钛合金表现出的超弹性效应和单向形状记忆效应。考虑到第一效应，相关的力-位移曲线被计算为位移幅度的函数。研究了等温温度变化对加载-卸载滞回响应的影响。通过与文献中的实验数据进行比较，评估了数值模型的收敛性。对于第二种效应，针对不同配置的螺旋弹簧，评估了与完整的单向热机械循环相关的力-位移曲线。导出了可用于螺旋弹簧设计的显式关联式。

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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Force-displacement relationships for NiTi alloy helical springs by using ANSYS: Superelasticity and shape memory effect

Shape memory alloys are smart materials which have remarkable properties that promoted their use in a large variety of innovative applications. In this work, the shape memory effect and superelastic behavior of nickel-titanium helical spring was studied based on the finite element method. The three-dimensional constitutive model proposed by Auricchio has been used through the built-in library of ANSYS® Workbench 2020 R2 to simulate the superelastic effect and one-way shape memory effect which are exhibited by nickel-titanium alloy. Considering the first effect, the associated force-displacement curves were calculated as function of displacement amplitude. The influence of changing isothermal body temperature on the loading-unloading hysteretic response was studied. Convergence of the numerical model was assessed by comparison with experimental data taken from the literature. For the second effect, force-displacement curves that are associated to a complete one-way thermomechanical cycle were evaluated for different configurations of helical springs. Explicit correlations that can be applied for the purpose of helical spring's design were derived.

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来源期刊

International Review of Applied Sciences and Engineering Materials Science-Materials Science (miscellaneous)

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

46 weeks

期刊介绍： International Review of Applied Sciences and Engineering is a peer reviewed journal. It offers a comprehensive range of articles on all aspects of engineering and applied sciences. It provides an international and interdisciplinary platform for the exchange of ideas between engineers, researchers and scholars within the academy and industry. It covers a wide range of application areas including architecture, building services and energetics, civil engineering, electrical engineering and mechatronics, environmental engineering, mechanical engineering, material sciences, applied informatics and management sciences. The aim of the Journal is to provide a location for reporting original research results having international focus with multidisciplinary content. The published papers provide solely new basic information for designers, scholars and developers working in the mentioned fields. The papers reflect the broad categories of interest in: optimisation, simulation, modelling, control techniques, monitoring, and development of new analysis methods, equipment and system conception.