期刊
INTERNATIONAL JOURNAL OF PLASTICITY
卷 16, 期 10-11, 页码 1269-1288出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0749-6419(00)00010-3
关键词
phase transformation; constitutive behaviour; polycrystalline material; mechanical testing; numerical algorithms
This paper. deals with the influence of martensitic transformation latent heat on the superelastic behaviour modelling. Exothermic and endothermic effects are responsible for a strong evolution on the temperature field inside the material that modifies its mechanical response. This is responsible for a strain late effect that is taken into account by introducing a coupling equation between the production rate of martensite and the temperature change, into a micro macro modelling of the superthermoelastic behaviour with the assumption that the temperature field remains uniform but different to the test temperature imposed. Numerical simulations so obtained show a good agreement with experimental results performed on Cu-based superelastic alloys. (C) 2000 Published by Elsevier Science Ltd.
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