Numerical procedure for discrete fracture propagation in porous materials

Bernhard A. Schrefler, Stefano Secchi, Luciano Simoni

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

Abstract

This paper presents a numerical procedure for cohesive hydraulic fracture propagation. The quasi static problem of crack nucleation and/or advancement is solved by successive remeshing when domain changes are originated and projections are required in a backward solution scheme. This projection is directly applied to residual nodal vectors (forces and fluxes) of the previous step. This vector is projected using the element shape functions of the old mesh, hence ensuring the fulfilment of the balance equations. The resulting procedure is simple, however checks have to be made on its capability of conserving the energy.

Original languageEnglish
Title of host publicationECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering
StatePublished - Dec 1 2004
EventEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 - Jyvaskyla, Finland
Duration: Jul 24 2004Jul 28 2004

Other

OtherEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004
CountryFinland
CityJyvaskyla
Period7/24/047/28/04

Keywords

  • Adaptive remeshing
  • Discrete fracture
  • Hydraulic fracture
  • Porous media

ASJC Scopus subject areas

  • Artificial Intelligence
  • Applied Mathematics

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