OS0602 高強度鋼の超高サイクル域における疲労寿命の推定(OS6-1 基礎疲労特性と試験法・評価法,OS-6 金属材料の超高サイクル疲労と信頼性評価)

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タイトル別名
  • OS0602 Fatigue Life Prediction of High-Strength Steels in Very High Cycle Fatigue Regime

抄録

A new prediction method for fatigue life in very high cycle regime was proposed based on the Paris power law. Exponent m and coefficient C in the power law obtained from experimental S-N data showed a good linear relation on a log-log diagram. Also, the exponent m was explained by the Vickers hardness of materials. Proposed prediction method was in form of Basquin's equation explicitly included an inclusion size and hardness of material. The new method was compared to the prior prediction methods and gave a fairly good agreement with the experimental data.

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