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- W2802852059 abstract "Numerical simulation of fatigue crack propagation based on fracture mechanics and conventional finite element method requires huge amount of computational resources when cracked structure is subjected to complicated condition such as the cases of multiple site damage or thermal fatigue. The objective of the present study is to resolve this difficulty by employing the continuum damage mechanics (CDM). An anisotropic damage variable is defined to model a macroscopic fatigue crack and its validity is examined by comparing the stress distributions around the crack with those obtained by an ordinary fracture mechanics method. Together with the assumptions on crack opening/closing and damage evolution, numerical simulations are conducted for low cycle fatigue crack propagation behaviors in a plate with single and two cracks. The results show good agreement with the experiments. Finally, propagations of multiply distributed cracks under low cycle fatigue loading are simulated to demonstrate the potential applicability of the present method." @default.
- W2802852059 created "2018-05-17" @default.
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- W2802852059 date "2004-01-01" @default.
- W2802852059 modified "2023-10-04" @default.
- W2802852059 title "Fatigue Crack Modeling and Simulation Based on Continuum Damage Mechanics" @default.
- W2802852059 doi "https://doi.org/10.1115/pvp2004-2993" @default.
- W2802852059 hasPublicationYear "2004" @default.
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