A temperature-dependent three-dimensional super-elastic constitutive model considering plasticity for NiTi alloy

Qianhua Kan; Guozheng Kang; Linmao Qian; Sujuan Guo

doi:10.1117/12.839357

25 August 2009 A temperature-dependent three-dimensional super-elastic constitutive model considering plasticity for NiTi alloy

Qianhua Kan, Guozheng Kang, Linmao Qian, Sujuan Guo

Author Affiliations +

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 73755U (2009) https://doi.org/10.1117/12.839357
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

Based on the experimental results of super-elastic NiTi alloy, a three-dimensional thermo-mechanical constitutive model which includes transformation and plasticity was constructed in a framework of general inelasticity. In the proposed model, transformation hardening, reverse transformation, elastic mismatch between the austenite and martensite phases, and temperature-dependence of elastic modulus for each phase are considered. In the meantime, the plastic yielding of austenite or martensite occurred at high temperature or under high stress is also addressed. The predict capability of the proposed model was verified by comparing the simulated results with the correspondent experimental results.

Citation Download Citation

Qianhua Kan, Guozheng Kang, Linmao Qian, and Sujuan Guo "A temperature-dependent three-dimensional super-elastic constitutive model considering plasticity for NiTi alloy", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73755U (25 August 2009); https://doi.org/10.1117/12.839357

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