STUDY ON PSEUDOELASTICITY OF Cu-Zn-Al POLYCRYSTALLINE SHAPE MEMORY ALLOY BY MOIRE INTERFEROMETRY

An experimental study on the constitutive behavior of Cu-Zn- Al polycrystallineshape memory alloy is reported.By means of moire interferometry, both the displacementfields and t he corresponding pseudoelasticity stress strain curves are obtained.The experi-ment reveals some important features of the deformation process,and a brief discussfon ismade for the obtained results.