Modelling of martensitic transformation and plastic slip effects on the thermo-mechanical behaviour of Fe-based shape memory alloys - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Mechanics of Materials Année : 2009

Modelling of martensitic transformation and plastic slip effects on the thermo-mechanical behaviour of Fe-based shape memory alloys

Résumé

In this paper, we propose a thermo-mechanical three-dimensional constitutive law adapted to Fe-based shape memory alloys. It takes into account the effect of the martensitic transformation and the plastic slip mechanisms and their interaction. The adopted formulation is based on a simplified micromechanical description. The macroscopic behaviour is derived by considering the equivalent homogeneous effect on a representative volume element. The Gibbs free energy expression is defined. Thermodynamic driving forces are then derived and compared to critical forces leading to the constitutive equations solved by Newton–Raphson numerical scheme. Obtained results for thermo-mechanical loadings are compared to experimental ones.

Dates et versions

hal-01769355 , version 1 (17-04-2018)

Identifiants

Citer

Fatma Jemal, Tarak Bouraoui, Tarak Ben Zineb, Etienne Patoor, Chedly Bradai. Modelling of martensitic transformation and plastic slip effects on the thermo-mechanical behaviour of Fe-based shape memory alloys. Mechanics of Materials, 2009, 41 (7), pp.849-856. ⟨10.1016/j.mechmat.2008.11.007⟩. ⟨hal-01769355⟩
17 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More