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

Luc Saint-Sulpice (1) , Shabnam Arbab-Chirani (1) , Sylvain Calloch (1)

1 LBMS - Laboratoire brestois de mécanique et des systèmes

This 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.

Mots clés: Pseudo-elasticity; Experimental results; Macroscopic model; Residual strain evolution; Nonproportional cyclic loading

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

Luc Saint-Sulpice, Shabnam Arbab-Chirani, Sylvain Calloch. A 3D Super-elastic Model for Shape Memory Alloys Taking into account Progressive strain under Cyclic Loadings. Mechanics of Materials, 2009, 41, pp.12-26. ⟨10.1016/j.mechmat.2008.07.004⟩. ⟨hal-00449131⟩