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- W4280633630 abstract "To study the discrete crack growth of heterogeneous materials, a dual-scale discrete fracture calculation method is proposed in this paper. An equivalent cohesive energy criterion is proposed for the FE2 model based on the characteristics of the fracture zone. The representative volume element (RVE) with a cohesive zone is embedded into the Gauss points of the macro-element to replace the full FE model of the discrete crack. Therefore, the dual-scale method of discrete fractures not only improves the dual-scale modeling of discrete cracks but also greatly reduces the computational cost. We further demonstrate that the built-in capabilities of commercial software are naturally compatible with this method. Finally, the fracture process of a two-phase heterogeneous material containing a zirconium alloy matrix and hydride was studied using the dual-scale method. The macro-fracture direction was related to the precipitation direction of the brittle hydrides. This conclusion is consistent with existing experimental observations." @default.
- W4280633630 created "2022-05-22" @default.
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- W4280633630 date "2022-06-01" @default.
- W4280633630 modified "2023-10-02" @default.
- W4280633630 title "FE2 methodology for discrete cohesive crack propagation in heterogenous materials" @default.
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- W4280633630 doi "https://doi.org/10.1016/j.engfracmech.2022.108537" @default.
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