形状記憶合金の力学的挙動に関する現象論

概要

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The uniaxial mechanical behavior of shape memory alloys is studied from the phenomenological point of view in the process of stress-induced martensitic transformation or of its reverse transformation. The phenomenological interpretation of the fraction of phase, which is identified as the internal state variable in the theory, is first discussed. The mechanical constitutive equation and the transformation kinetics are then proposed. They are shown to describe well such behaviors as the transformation pseudoelasticity, the partial transformation pseudoelasticity and the shape memory effect. The theory can also explain the strain recovery and the increase of the recoverable force during the heating process. The applicability of the theory is acknowledged by the numerical examples.
一般社団法人日本機械学会の論文
1987-07-25