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Issue J. Phys. IV France
Volume 01, Number C4, Novembre 1991
EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES
Page(s) C4-95 - C4-100
DOI http://dx.doi.org/10.1051/jp4:1991414

EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATION AND SHAPE MEMORY PROPERTIES

J. Phys. IV France 01 (1991) C4-95-C4-100

DOI: 10.1051/jp4:1991414

INTERNAL STRESS EFFECT IN THE SHAPE MEMORY BEHAVIOUR

E. 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


Abstract
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.



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