1215 介在物分布を考慮したトラクションドライブ要素の面圧強度評価 : 第1報,研究計画とシミュレーション(面圧強度・疲労強度,一般講演)

概要

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A simulation method to estimate surface durability of traction-drive elements considering distribution and size of inclusions is developed. Fatigue strength of an ordinary and a clean SCM415 steels are estimated. Estimated strength is about 3.2 GPa in the maximum Hertzian pressure. This almost equals to an experimental result of 3.1 GPa. Large inclusions reduce strength of the material very much even they are very few. So reducing number and size of inclusions is necessary to increase material's strength. The strength evaluated by the Hertzian pressure decreases according as the traction coefficient becomes large. The depth where the ratio of hardness to stress is least will be weakest point, so quenching depth should be related to stress distribution.
社団法人日本機械学会の論文
2008-04-20