MICROMECHANICAL CONSTITUTIVE EQUATIONS FOR THERMOELASTIC PHASE TRANSFORMING POLYCRYSTALS
Review articleOpen access
Abstract:

ABSTRACTThe constitutive research on phase transforming materials is briefly reviewed and a micromechanics constitutive theory recently developed by the authors is concisely summerized. In this theory, the basic deformation mechanisms that dominate the constitutive behavior of the material under various thermomechanical loading conditions are first classified as the following three major processes: (1) forward and reverse transformations; (2) forward and reverse reorientations and (3) second kind of reorientation. In the exposition of the proposed theory, particular attention is paid to the description of the micromechanics idealization of the material sample, the definition of some basic state variables and some basic assumptions regarding the deformation process. An assessment is given to the theoretical predictions for the individual constitutive phenomena of shape memory alloys. Finally future research trend and opportunities in this area are briefly outlined.

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