Journal Article

Transformation-induced plasticity in high-temperature shape memory alloys: a one-dimensional continuum model

Sakhaei, Amir Hosein, Lim, Kian-Meng

2016

Overview

A constitutive model based on isotropic plasticity consideration is presented in this work to model the thermo-mechanical behavior of high-temperature shape memory alloys. In high-temperature shape memory alloys (HTSMAs), both martensitic transformation and rate-dependent plasticity (creep) occur simultaneously at high temperatures. Furthermore, transformation-induced plasticity is another deformation mechanism during martensitic transformation. All these phenomena are considered as dissipative processes to model the mechanical behavior of HTSMAs in this study. The constitutive model was implemented for one-dimensional cases, and the results have been compared with experimental data from thermal cycling test for actuator applications.

• Publisher: Springer Berlin Heidelberg,Springer,Springer Nature B.V
• Subject: Actuators / Alloys / Classical and Continuum Physics / Comparative analysis / Constitutive relationships / Creep (materials) / Dissipation / Engineering Thermodynamics / Heat and Mass Transfer / High temperature / Martensitic transformations / Mathematical models / Mechanical properties / Metals (Materials) / Original Article / Phase transitions / Physics / Physics and Astronomy / Plasticity / Shape memory alloys / Structural Materials / Theoretical and Applied Mechanics / Thermodynamics