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Acta Mechanica Solida Sinica

, Volume 22, Issue 5, pp 399–406 | Cite as

Stress Hysteresis and Domain Evolution in Thermoelastic Tension Strips

  • Liang Dong
  • Qingping Sun
Article

Abstract

Martensite domain formation, evolution and annihilation are widely observed in stress-induced phase transformation of superelastic NiTi polycrystalline shape memory alloys. By the calculation of the thermodynamic driving force and the incorporation of friction kinetics of the interface, the domain morphology and its evolution were successfully simulated by the interface-tracking technique. The computational results agree well with the experimental observation of tensile strips. Based on theoretical and computational results, we discussed the effects of critical driving force and the existence of metastability on the transition between different domain patterns.

Key words

non-convex free energy friction kinetics hysteresis metastability interface-tracking technique domain evolution 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2009

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringThe Hong Kong University of Science and TechnologyHong KongChina

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