Abstract
In this study, fatigue damage is combined with a cohesive zone model to simulate fatigue crack growth along the interface between dissimilar materials under repeated loadings. An evolution equation for fatigue damage is considered for the degradation of materials in a failure process zone. The potential-based Park–Paulino–Roesler cohesive model is employed to correctly consider mixed modes in the relationships between cohesive tractions and crack opening separations. Numerical examples show that the present method can predict properly fatigue crack growth along the interface between dissimilar materials under repeated loadings.
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This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2018R1A2B6006234).
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Choi, YH., Kim, HG. Development of a Cohesive Zone Model for Fatigue Crack Growth. Multiscale Sci. Eng. 2, 42–53 (2020). https://doi.org/10.1007/s42493-020-00034-5
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DOI: https://doi.org/10.1007/s42493-020-00034-5