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- W3032923198 abstract "The existing stress field evaluation formulas for V-shaped and U-shaped notches are complicated and limited to certain specific opening angles. Based on linear elastic fracture mechanics and singular strength theory, the traditional calculation formula of notch stress distribution is simplified by introducing singular intensity factors, and the notch stress formula suitable for different opening angles is further summarized and fitted by comparing the stress distribution laws from 102° to 150° opening angles. After verification, the relative error of stress between the simple formula and finite element results is about 5%. On this basis, the formula of notch stress intensity factor (N-SIF) under different opening angles is further derived. Finally, the notch stress and N-SIF of cruciform welded specimens under different welding angles are separately calculated for fatigue strength evaluation. The evaluation process shows that the simplified formula can be used to quickly and accurately evaluate the notch stress field and fatigue strength of welded structures." @default.
- W3032923198 created "2020-06-12" @default.
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- W3032923198 date "2020-08-01" @default.
- W3032923198 modified "2023-10-09" @default.
- W3032923198 title "A simplified method for evaluating singular stress field of V-shaped and U-shaped notches with different opening angle" @default.
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- W3032923198 doi "https://doi.org/10.1016/j.oceaneng.2020.107352" @default.
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