J0301-2-2 オーステナイト系ステンレス鋼の疲労曲線および設計係数に関する検討(規格における疲労関連課題と方向性(2))

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  • J0301-2-2 Study on a fatigue curve and design factors for austenitic stainless steel

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In this paper, a mean fatigue curve of austenitic steels is analyzed by using a statistical method with including the latest data and design factors of a design fatigue curve are studied. The design factors of the fatigue curve of austenitic steels are investigated for parameters decreasing fatigue life such as size effect, surface finish and data scatter and appropriate design factors are proposed. As a result of consideration of the design factor by the Monte Carlo method, the values were 12 for fatigue life and from 1.9 for stress (both by the 95% confidence limit).

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