A Constitutive Model for Shape Memory Alloys Involving Transformation, Reorientation and Plasticity

Xiang He Peng; Min Mei Chen; Jun Wang

doi:10.4028/www.scientific.net/KEM.535-536.105

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 535-536A Constitutive Model for Shape Memory Alloys...

A Constitutive Model for Shape Memory Alloys Involving Transformation, Reorientation and Plasticity

Abstract:

A constitutive model is developed for shape memory alloys (SMAs) based on the concept that an SMA is a mixture composed of austenite and martensite. The deformation of the martensite is separated into elastic, thermal, reorientation and plastic parts, and that of the austenite is separated into elastic, thermal and plastic parts. The volume fraction of each phase is determined with the modified Tanaka’s transformation rule. The typical constitutive behavior of some SMAs, including pseudoelasticity, shape memory effect, plastic deformation as well as its effects, is analyzed.

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Periodical:

Key Engineering Materials (Volumes 535-536)

Pages:

105-108

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.535-536.105

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Online since:

January 2013

Authors:

Xiang He Peng, Min Mei Chen, Jun Wang

Keywords:

Plastic Deformation, Reorientation, Shape Memory Alloy (SMA), Transformation

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