Constitutive model of shape memory alloy under the effect of martensite plasticity for finite-element applications

Abstract

This study is focused on the superelastic Ni-based shape memory alloy (SMA) for finite-element applications. SMA has presented excellent characterisations in biomedical application, mechanical application, aerospace application, seismic prevention, disaster reduction and so on. In this study, a SMA constitutive model is proposed that is capable of describing SMA superelastic features and its plasticity effects. Finally, the analysed results show good ability to predict the experimental data.

Keywords

• nickel alloys
• elasticity
• shape memory effects
• plasticity
• finite element analysis
• martensite plasticity
• biomedical application
• mechanical application
• plasticity effects
• superelastic shape memory alloy
• seismic prevention
• disaster reduction