A 3D Super-elastic Model for Shape Memory Alloys Taking into account Progressive strain under Cyclic Loadings

Abstract

WOSInternational audienceThis paper concerns the mechanical behavior of super-elastic polycrystalline shape memory alloys under cyclic loadings. Sometimes, as shown by many experimental observations, a permanent inelastic strain occurs and increases with the number of cycles. A series of cyclic tests has been carried out and used to develop a 3D macroscopic model for the super-elasticity of SMAs able to describe the evolution of permanent inelastic strain during cycles