Numerical simulation of fatigue crack growth with stress-strain relationship under cyclic loading
説明
In numerical simulations of fatigue crack propagation, the true stress-true strain relationship under cyclic loading should be considered, but in simulations modelling crack opening behaviour, the stress-strain relationship of the material is regarded as rigid plastic or isotropically hardened elastic-plastic material from the point of view of model simplification. / In this study, the true stress-true strain relationship under cyclic loading, estimated from the true stress-true strain relationship under monotonic tensile loading, is implemented in fatigue crack propagation simulations of work-hardened materials proposed by some of authors. / Fatigue crack growth curves under the following three loadings, (1) constant cyclic loading under different stress ratios, (2) two-stage block loading cycles, (3) constant cyclic loading with a spike load, were estimated and compared with the measured results obtained in previous studies. / The results show that the accuracy of the fatigue crack growth estimation is better than the conventional stress-strain relationship assuming elastic-perfectly plastic materials.
収録刊行物
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- Proceedings of The 36th Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures (TEAM 2023)
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Proceedings of The 36th Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures (TEAM 2023) 122-128, 2023-10-12
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詳細情報 詳細情報について
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- CRID
- 1050017057726474112
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- HANDLE
- 2324/7157018
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- 本文言語コード
- en
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- 資料種別
- conference paper
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- データソース種別
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- IRDB