Research on multiaxial fatigue life of notched specimens based on Weibull distribution and Bayes estimation

Feilong Hua,Jianhui Liu,Xuemei Pan,He Zhao,Zhen Zhang,Shanshan Lang

International Journal of Fatigue（2023）

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摘要

•A fatigue life prediction model based on the modified nominal stress method is proposed.•A critical plane determination method based on energy method is proposed.•The iterative sequence is established to obtain predicted life.•The revised P-S-N curves with a failure probability in the range of 5%-95% are given and analyzed.

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关键词

Multiaxial notched specimens,Stress gradient effect,Weibull distribution,Reliability prediction,Critical plane method

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