Finite Strain Constitutive Modelling of Shape Memory Alloys Considering Partial Phase Transformation with Transformation-Induced Plasticity

Abstract This paper presents a unified modelling effort to describe partial phase transformation during cyclic thermo-mechanical loading in Shape Memory Alloys (SMA). To this purpose, three-dimensional (3D) finite strain constitutive model considering TRansformation-Induced Plasticity (TRIP) is combined with modified hardening function enable the accurate and efficient prediction of transformations loading. The capabilities proposed are demonstrated by predicting behavior material under pseudoelastic actuation operation using element analysis. Numerical results presented compared original without feature as well uniaxial experimental data. Various aspects analyzed discussed for different SMA systems.