Abstract
This study presents a novel peridynamic model for the prediction of fatigue crack growth rate with the effects of overload and underload. The modified Wheeler models for underload, overload and overload-underload combinations are applied to peridynamic fatigue equations. The capability of the proposed peridynamic fatigue model is demonstrated by considering fatigue crack growth on a single edge-notch plate subjected to constant amplitude loadings with overloads, underloads, and overload/underload combinations. The accuracy of the proposed peridynamic fatigue model is verified by comparing the predicted fatigue crack growth with experimental results.
Original language | English |
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Article number | 103115 |
Number of pages | 19 |
Journal | Theoretical and Applied Fracture Mechanics |
Volume | 116 |
Early online date | 27 Sept 2021 |
DOIs | |
Publication status | Published - 31 Dec 2021 |
Keywords
- peridynamics
- fatigue
- overload
- underload
- variable amplitude loading