Abstract
A constitutive model based on isotropic plasticity consideration is presented in this work to model the thermo-mechanical behavior of high-temperature shape memory alloys. In high-temperature shape memory alloys (HTSMAs), both martensitic transformation and rate-dependent plasticity (creep) occur simultaneously at high temperatures. Furthermore, transformation-induced plasticity is another deformation mechanism during martensitic transformation. All these phenomena are considered as dissipative processes to model the mechanical behavior of HTSMAs in this study. The constitutive model was implemented for one-dimensional cases, and the results have been compared with experimental data from thermal cycling test for actuator applications.
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Communicated by Andreas Öchsner.
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Sakhaei, A.H., Lim, KM. Transformation-induced plasticity in high-temperature shape memory alloys: a one-dimensional continuum model. Continuum Mech. Thermodyn. 28, 1039–1047 (2016). https://doi.org/10.1007/s00161-015-0450-5
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DOI: https://doi.org/10.1007/s00161-015-0450-5