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- W4386993344 abstract "Additive manufacturing (AM) has attracted many attentions because of its design freedom and rapid manufacturing; however, it is still limited in actual application due to the existing defects. In particular, various defect features have been proved to affect the fatigue performance of components and lead to fatigue scatter. In order to properly assess the influences of these defect features, a defect driven physics-informed neural network (PiNN) is developed. By embedding the critical defects information into loss functions, the defect driven PiNN is enhanced to capture physical information during training progress. The results of fatigue life prediction for different AM materials show that the proposed PiNN effectively improves the generalization ability under small samples condition. Compared with the fracture mechanics-based PiNN, the proposed PiNN provides physically consistent and higher accuracy without depending on the choice of fracture mechanics-based model. Moreover, this work provides a scalable framework being able to integrate more prior knowledge into the proposed PiNN. This article is part of the theme issue 'Physics-informed machine learning and its structural integrity applications (Part 1)'." @default.
- W4386993344 created "2023-09-25" @default.
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- W4386993344 date "2023-09-25" @default.
- W4386993344 modified "2023-10-14" @default.
- W4386993344 title "Defect driven physics-informed neural network framework for fatigue life prediction of additively manufactured materials" @default.
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- W4386993344 doi "https://doi.org/10.1098/rsta.2022.0386" @default.
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