Pressure and fluid-driven fracture propagation in porous media using an adaptive finite element phase field model
- Univ. of Texas, Austin, TX (United States)
- Austrian Academy of Sciences, Linz (Austria); Technische Univ. München, Garching bei München (Germany)
This work presents phase field fracture modeling in heterogeneous porous media. We develop robust and efficient numerical algorithms for pressure-driven and fluid-driven settings in which the focus relies on mesh adaptivity in order to save computational cost for large-scale 3D applications. In the fluid-driven framework, we solve for three unknowns pressure, displacements and phase field that are treated with a fixed-stress iteration in which the pressure and the displacement–phase-field system are decoupled. The latter subsystem is solved with a combined Newton approach employing a primal–dual active set method in order to account for crack irreversibility. Numerical examples for pressurized fractures and fluid filled fracture propagation in heterogeneous porous media demonstrate our developments. Finally in particular, mesh refinement allows us to perform systematic studies with respect to the spatial discretization parameter.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Center for Frontiers of Subsurface Energy Security (CFSES)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0001114; UTA 10-000444; STNO-450291834
- OSTI ID:
- 1387952
- Alternate ID(s):
- OSTI ID: 1358958
- Journal Information:
- Computer Methods in Applied Mechanics and Engineering, Vol. 305, Issue C; Related Information: CFSES partners with University of Texas at Austin (lead); Sandia National Laboratory; ISSN 0045-7825
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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