FEMを用いたブリンネル硬さに及ぼす構成関係の影響 : (マイヤー則に及ぼす非弾性材料定数の影響)

概要

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This paper describes the effect of elastic-plastic material constants on Brinell hardness. Finite element analyses simulating Brinell hardness were carried out by varying Young's modulus, yield stress and work hardening coefficient and exponent. Meyer's rule, P=kd^m, was confirmed to hold by the analyses but the constants k and m were functions of the materials constants. A new equation which can predict Brinell hardness was proposed by knowing the elastic-plastic material constants. The equation predicted Brinell hardness within ±15% error for the analytical and experimental results. Critical thickness defined in JIS for Brinell hardness tests was found to be inadequate and a new guide line was proposed.
一般社団法人日本機械学会の論文
1999-02-25