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Finite element modelling of fracture propagation in saturated media using quasi-zero-thickness interface elements

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  • Additional Information
    • Contributors:
      Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. GMNE - Grup de Mètodes Numèrics en Enginyeria
    • Publication Information:
      Elsevier BV, 2018.
    • Publication Date:
      2018
    • Abstract:
      A new computational technique for the simulation of 2D and 3D fracture propagation processes in saturated porous media is presented. A non-local damage model is conveniently used in conjunction with interface elements to predict the degradation pattern of the domain and insert new fractures followed by remeshing. FIC-stabilized elements of equal order interpolation in the displacement and the pore pressure have been successfully used under complex conditions near the undrained-incompressible limit. A bilinear cohesive fracture model describes the mechanical behaviour of the joints. A formulation derived from the cubic law models the fluid flow through the crack. Examples in 2D and 3D, using 3-noded triangles and 4-noded tetrahedra respectively, are presented to illustrate the accuracy and robustness of the proposed methodology.
    • File Description:
      application/pdf
    • ISSN:
      0266-352X
    • Accession Number:
      10.1016/j.compgeo.2017.10.016
    • Rights:
      Elsevier TDM
      CC BY NC ND
      CC BY NC SA
    • Accession Number:
      edsair.doi.dedup.....3add72d4c56a473fdabc97c51d8c1705