Thermomechanical Modeling of Shape Memory Alloys with Rate Dependency on the Pseudoelastic Behavior

被引：13

作者：

Roh, Jin-Ho ^{[1
]}

机构：

[1] Korea Aerosp Univ, Sch Aerosp & Mech Engn, Goyang 412791, Gyeonggi Do, South Korea

来源：

MATHEMATICAL PROBLEMS IN ENGINEERING | 2014年 / 2014卷

关键词：

CONSTITUTIVE MODEL; STRAIN-RATE; SMA;

D O I：

10.1155/2014/204165

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The loading-rate dependency on the pseudoelastic behaviors of shape memory alloy (SMA) wires is experimentally and numerically investigated. The results are analyzed to estimate the parameters for a thermomechanical constitutive model of SMA wire with strain-rate dependency of the hysteresis behavior. An analytical model of SMAs is developed by using nonconstant parameters during various strain rates. Numerical simulations are performed to demonstrate the accuracy of the improved model.

引用

页数：9

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