Simulation of hydraulic fracture propagation using unstructured triangular mesh elements

J. A.L. Napier, Emmanuel M Detournay

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationInsights and Innovations in Structural Engineering, Mechanics and Computation - Proceedings of the 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016
EditorsAlphose Zingoni
PublisherCRC Press/Balkema
Pages481-486
Number of pages6
ISBN (Print)9781138029279
DOIs
StatePublished - Jan 1 2016
Event6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016 - Cape Town, South Africa
Duration: Sep 5 2016Sep 7 2016

Publication series

NameInsights and Innovations in Structural Engineering, Mechanics and Computation - Proceedings of the 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016

Other

Other6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016
Country/TerritorySouth Africa
CityCape Town
Period9/5/169/7/16

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