Numerical analysis on thermo-mechanical behavior of shape memory alloy strip with two-way shape memory effect

摘要

Phenomenological modeling on thermo-mechanical response of shape memory alloy strip is presented in this article. Thermal response and transformation-accompanied deformation are described by the proposed model. The transformation expansion tensor is proposed to describe the relationship between the transformation-induced deformation of the strip and the temperature. Based on the fixed-point iterative method, the model is then implemented into ABAQUS using the user-defined subroutine. Finally, the proposed model is verified by the comparison between the finite element simulation and experiment on the thermo-mechanical responses of a shape memory alloy strip.