Journal
INTERNATIONAL JOURNAL OF FRACTURE
Volume 232, Issue 2, Pages 135-151Publisher
SPRINGER
DOI: 10.1007/s10704-021-00596-x
Keywords
Phase-field model; Fracture; Pneumatic fracture; Anisotropic crack resistance; Driven fracture
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Funding
- Deutsche Forschungsgemeinschaft under the project Large-scale simulation of pneumatic and hydraulic fracture with a phase-field approach s part of the Priority Program [DFG WE2525-4, SPP 1748, 255801726]
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Phase-field models of fracture predict crack propagation and patterns in externally driven fracture processes in linear and finite elasticity. Different approaches for considering pneumatic pressure and non-isotropic crack resistance materials are studied, combined, and validated through numerical simulations in two and three dimensions, demonstrating the versatility of the proposed models.
Phase-field models of fracture allow the prediction of crack propagation and crack patterns. In this contribution, externally driven fracture processes in linear and finite elasticity are investigated. Different approaches to consider pneumatic pressure and materials with non-isotropic crack resistance are studied, combined, and examined in detail. The versatility of the proposed models is proven by a series of numerical simulations in two and three dimensions.
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