J. Phys. IV France 01 (1991) C4-95-C4-100
INTERNAL STRESS EFFECT IN THE SHAPE MEMORY BEHAVIOURE. PATOOR, P. BARBE, A. EBERHARDT and M. BERVEILLER
Institut Supérieur de Génie Mécanique et Productique, Université de Metz, Ile du Saulcy, F-57045 Metz cedex, France
Internal stress associated with an oriented microstructure of defects are taken into account in the thermoelastic balance of martensitic phase transition. From this analysis a macros copic flow rule is determined for the TWME by using a phenomenological approach based on a yield criterion derived from Gibb's free energy expression. Experiments performed on a Cu-Zn-Al polycrystalline alloy trained with a cyclic uniaxial tension test are used for identifying the modelling parameters.
© EDP Sciences 1991