This program can be used to evaluate stress strain response of shape memory alloys at constant stress and with constant material functions based on the Brinson model.-This program can be used to evaluate stress strain re

记忆合金三维本构，Umat及算例验证，三种算法。。(Three dimensional constitutive model of memory alloy, Umat and example verification.)

Python代码实现brinson归因分解模型(realize Brinson model using python)