Experimental Identification of a Nonlinear Deformation Model for a Shape Memory Alloy during Phase and Structural Transformations

Abstract

The deformation of titanium nickelide specimens in loading under the conditions of martensite inelasticity and direct martensitic transformation during uniaxial compression and tension is experimentally studied. The experimental results can be used to determine two material functions for a nonlinear deformation model for a shape memory alloy. The experimental data are found to be approximated best of all when cumulative γ distribution functions are applied.