缪幸圆, 张志超, 陈朝晖. Phase-field Modeling of Fracture in Geomaterials for Subsurface Energy Storage[J]. 2017, 37(4): 621-626+635. DOI: 10.13409/j.cnki.jdpme.2017.04.017.
the development of a continuum phase-field model of brittle fracture for poroelastic solids is presented. The phase-field approach treats the discontinuity at the discrete lower-dimensional crack interface in a continuous diffusive setting. The system of equations is treated numerically by a monolithically coupled Newton-Raphson iterative-incremental solution strategy to be a scientific open-source finite element software OpenGeoSys. This contribution presents the governing equations along with details of said numerical implementation together with verification examples and perspectives for model application.
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