期刊
COMPUTATIONAL MECHANICS
卷 55, 期 5, 页码 1017-1040出版社
SPRINGER
DOI: 10.1007/s00466-015-1151-4
关键词
Phase-field model; Elastic-plastic solids; Fracture; Finite element
资金
- European Research Council, ERC Starting Researcher Grant INTERFACES [279439]
Phase-field modeling of brittle fracture in elastic solids is a well-established framework that overcomes the limitations of the classical Griffith theory in the prediction of crack nucleation and in the identification of complicated crack paths including branching and merging. We propose a novel phase-field model for ductile fracture of elasto-plastic solids in the quasi-static kinematically linear regime. The formulation is shown to capture the entire range of behavior of a ductile material exhibiting J(2)-plasticity, encompassing plasticization, crack initiation, propagation and failure. Several examples demonstrate the ability of the model to reproduce some important phenomenological features of ductile fracture as reported in the experimental literature.
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