Simulation of hydraulic fracture propagation using unstructured triangular mesh elements
Abstract eng: The paper introduces a computational algorithm to construct an evolving fluid-driven fracture front using unstructured triangular mesh elements. The scheme is implemented using the displacement discontinuity boundary element framework to represent the regional elastic medium. Special edge elements are described which enable the crack tip opening displacement to be matched to the assumed asymptotic crack tip opening shape as the fracture is propagated. The approach is illustrated using the cases of an incrementally pumped fracture growing in a uniform stress field and in a linearly varying stress field normal to the crack plane, with the crack tip opening shape dominated by a specified Mode I fracture toughness.
Contributors:
Publisher:
Taylor and Francis Group, London, UK
Conference Title:
Conference Title:
Sixth International Conference on Structural Engineering, Mechanics and Computation
Conference Venue:
Cape Town, South Africa
Conference Dates:
2016-09-05 / 2016-09-07
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-09-20, last modified 2016-09-20
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