大形低合金鋼軸材の熱弾塑性シミュレーション : 第2報,二つの異なる冷却を受ける円周溝付円柱について

概要

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The thermoelastoplastic stresses caused within a large-scaled low-alloy steel shaft material, which has a circumferential groove in the longitudinal center of its axis, are dynamically simulated by FEM based on the incremental strain theory under the two different cooling conditions, i. e. water and air. An inner tensile peak stress zone and compression stress concentration areas along the groove move through the cooling process because both the plastic deformation at the surface and the non-similarity of volumetic expansion due to transformation are compounded. As a result, characterizing the residual distributions on principal stresses, σ_1 and σ_2 are close with the inner in the air cooled zone compared with the water cooled, and σ_3 shows high compression stress concentrations at the fillets of the groove.
一般社団法人日本機械学会の論文
1988-03-25