913 変態塑性現象に関するフェーズフィールドモデリング(OS9. フェーズフィールド法とその応用(3),オーガナイズドセッション講演)

概要

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Transformation plasticity is one of the typical phenomena during phase transformation of steel, and it considerably affects the distortion of the products. Therefore, precise evaluation of the strain induced as well as residual stress distribution is necessary. Phenomenological constitutive equations considering this phenomena have been developed, while complete formulation has not yet been constructed, since the mechanism has not fully clarified. This study is motivated to model the transformation plasticity phenomena using phase field model, which can treat the interfacial behavior of two phases and is considered to provide better understanding of the phenomena. As the first step of our study, a function representing the mechanical properties depressing at the interfacial region is suggested. A simplified simulation considering the depressing hardening function exhibited large induced strain in the transformation temperature range.
一般社団法人日本機械学会の論文
2010-09-23