P. Delobelle et C. Lexcellent, A PHENOMENOLOGICAL 3-DIMENSIONAL MODEL FOR PSEUDOELASTIC BEHAVIOR OF SHAPE-MEMORY ALLOYS, Journal de physique. IV, 6(C1), 1996, pp. 293-300
An unified viscoplastic model with internal kinematic variables is use
d 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 o
f internal loops and the isothermal cyclic loading which constitutes a
n important training process. In the future, some progress must be per
formed to take into account non proportional paths and anisothermal th
ermomechanical loadings.