Strain rate sensitivity in superelasticity

被引：57

作者：

Entemeyer, D ^{[1
]}

Patoor, E ^{[1
]}

Eberhardt, A ^{[1
]}

Berveiller, M ^{[1
]}

机构：

[1] Univ Metz, ENIM, ENSAM Metz,Lab Phys & Mecan Mat, Inst Super Genie Mecan & Prod,UMR CNRS 7554, F-57045 Metz, France

来源：

INTERNATIONAL JOURNAL OF PLASTICITY | 2000年 / 16卷 / 10-11期

关键词：

phase transformation; constitutive behaviour; polycrystalline material; mechanical testing; numerical algorithms;

D O I：

10.1016/S0749-6419(00)00010-3

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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.

引用

页码：1269 / 1288

页数：20

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