大形低合金鋼軸材の熱弾塑性シミュレーション : 第3報,局部冷却における熱負荷境界近傍の応力

概要

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The thermoelastoplastic stresses caused near the circumferential boundary of the water cooling zone are dynamically simulated by FEM in a model with a large-scaled low-alloy steel shaft material. In this analysis, the incremental strain theory and the Mises' condition with a yield definition are used. In the beginning of cooling from the austenite zone, a notable tensile stress concentration area caused by plastic strain with a high equivalent stress grows near the cooling boundary. According to the growth of the transformation zone, in the applied area, the tensile stress changes for the compressed gradually. As the result, high compression stress concentrations appear within residual stress distributions.
一般社団法人日本機械学会の論文
1988-10-25