A life prediction model coupled with residual stress and initial damage on aerofoil specimens subjected to foreign object damage

Dianyin Hu,Lin Yan,Jianxing Mao,Xiaojun Guo,Xiaoming Shan,Rongqiao Wang

International Journal of Fatigue（2022）

引用 4|浏览1

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摘要

•Mechanism of fatigue failure after FOD is investigated using SEM observations.•3D FEA is conducted to achieve the stress state after impact and during fatigue loading.•A novel theory of critical distance method coupling residual stress and initial damage is proposed and validated.

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关键词

Aerofoil specimen,Foreign object damage,Residual stress,Initial damage,Fatigue life prediction

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