International Seminar on Mechanics and Mechanisms of Solid-Solid Phase Transformations
J. Phys. IV France 06 (1996) C1-293-C1-300
A Phenomenological three Dimensional Model for Pseudoelastic Behavior of Shape Memory AlloysP. Delobelle and C. Lexcellent
Laboratoire de Mécanique Appliquée R. Chaléat, UFR Sciences et Techniques, Route de Gray, La Bouloie, 25030 Besançon cedex, France
An unified viscoplastic model with internal kinematic variables is used to improve the description of the uniaxial and proportional loadings performed in the pseudoelastic range of shape memory alloys. There is a good agreement between experimental data and simulations. Moreover, this constitutive set of equations is efficient for the description of internal loops and the isothermal cyclic loading which constitutes an important training process. In the future, some progress must be performed to take into account non proportional paths and anisothermal thermomechanical loadings.
© EDP Sciences 1996