An extension of the ZM model for shape memory alloys accounting for plastic deformation

摘要: Abstract In this paper, the ZM model for shape memory alloys ( Zaki and Moumni, 2007a , 2007b ) is modified in order to account irreversible plastic deformations that might occur when material subjected severe mechanical loading. For purpose, we follow same procedure used developing original model, cast mainly within framework of generalized standard materials with internal constraints. A first version based on non-cyclic developed simulate tensile behavior a polycrystalline NiTi alloy. Comparison experimental data shows ability adequately predict stress–strain material, including deformation martensite beyond point yield. The fails, however, providing satisfactory estimate total inelastic remaining after complete unloading. To overcome issue, cyclic generalized. resulting better fits data.