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Article Dans Une Revue International Journal of Solids and Structures Année : 2012

Thermomechanical cyclic behavior modeling of CuAlBe SMA materials and structures

Shabnam Arbab-Chirani
MMA
Sylvain Calloch
MMA

Résumé

This paper concerns the behavior of Cu-Al-Be polycrystalline shape memory alloys under cyclic thermomechanical loadings. Sometimes, as shown by many experimental observations, a permanent inelastic strain occurs and increases with the number of cycles. A series of cyclic thermomechanical tests has been carried out and the origin of the residual strain has been identified as residual martensite. These observations have been used to develop a 3D macroscopic model for the superelasticity and stress assisted memory effect of SMAs able to describe the evolution of permanent inelastic strain during cycles. The model has been implemented in a finite elements code and used to simulate the behavior of antagonistic actuators based on SMA springs under cyclic thermomechanical loading with a residual displacement appearance.

Dates et versions

hal-00680269 , version 1 (19-03-2012)

Identifiants

Citer

Luc Saint-Sulpice, Shabnam Arbab-Chirani, Sylvain Calloch. Thermomechanical cyclic behavior modeling of CuAlBe SMA materials and structures. International Journal of Solids and Structures, 2012, 49 (9), pp.1088-1102. ⟨10.1016/j.ijsolstr.2012.01.017⟩. ⟨hal-00680269⟩
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