One Dimensional Modeling the Pseudoelastic Effect of Shape Memory Alloys

Meddour B.; Zedira H.; Djebaili H.; Brioua M.

This work aims to develop a model to describe the macroscopic behavior of shape memory alloys (SMAs) under mechanical loading in isothermal conditions. To build the model we have made recourse to thermodynamics laws, followed by writing an expression of a thermodynamic potential with internal and control variables. We have used assumptions about the homogeneity and isotropy of the material. We have extracted constitutive equations and written the transformation criteria. To investigate the response of this model we simulated a tensile test performed on an alloy Ni54.1Ti45.9 and to validate the efficiency we compared the results with experimental data and there was a good consensus between the prediction model and experimental observations finally to give more credibility to this work we have implemented the model in Abaqus software.

Select Volume / Issues:

• Volume 5,Issue 3,May 2014

Year:

2014

Type of Publication:

Article

Keywords:

Shape; Pseudoelasticity; Thermodynamic; Transformation

Journal:

IJECCE

Volume:

5

Number:

3

Pages:

543-546

Month:

May