Exploració per tema "X-FEM"

Ara es mostren els items 1-7 de 7

    • A continuous-discontinuous model for crack branching 

      Tamayo Mas, Elena; Feliu Fabà, Jordi; Casado Antolín, Montserrat; Rodríguez Ferran, Antonio (John Wiley & sons, 2019-10-05)
      Article
      Accés obert
      A new continuous-discontinuous model for fracture that accounts for crack branching in a natural manner is presented. It combines a gradient-enhanced damage model based on nonlocal displacements to describe diffuse cracks ...

    • A crack-tracking technique for localized cohesive-frictional damage 

      Saloustros, Savvas; Pelà, Luca; Cervera Ruiz, Miguel (2015-12-01)
      Article
      Accés obert
      This paper extends the use of crack-tracking techniques within the smeared crack approach for the numerical simulation of cohesive-frictional damage on quasi-brittle materials. The mechanical behaviour is described by an ...

    • An optimization-based phase-field method for continuous-discontinuous crack propagation 

      Geelen, Rudy J.; Liu, Yingjie; Dolbow, John E.; Rodríguez Ferran, Antonio (John Wiley & sons, 2018-10-05)
      Article
      Accés obert
      A new continuous-discontinuous strategy for the computational modeling of crack propagation within the context of phase-field models of fracture is presented. The method is designed to introduce and update a sharp crack ...

    • eXtended hybridizable discontinuous Galerkin for incompressible flow problems with unfitted meshes and interfaces 

      Gürkan, Ceren; Kronbichler, Martin; Fernández Méndez, Sonia (John Wiley & sons, 2019-02-17)
      Article
      Accés obert
      The eXtended hybridizable discontinuous Galerkin (X-HDG) method is developed for the solution of Stokes problems with void or material interfaces. X-HDG is a novel method that combines the hybridizable discontinuous Galerkin ...

    • Extended hybridizable discontinuous galerkin with heaviside enrichment for heat bimaterial problems 

      Gürkan, Ceren; Kronbichler, Martin; Fernández Méndez, Sonia (2017-01-28)
      Article
      Accés obert
      A novel strategy for the hybridizable discontinuous Galerkin (HDG) solution of heat bimaterial problems is proposed. It is based on eXtended finite element philosophy, together with a level set description of interfaces. ...

    • Étude de la stabilité d'une formulation incompressible traitée par X-FEM 

      Legrain, G; Moes, N; Huerta, Antonio (2006-06)
      Article
      Accés obert
      The treatment of (near-)incompressibility is a major concern for the simulation of rubber-like parts, or forming processes. The use of mixed finite element methods is known to prevent the locking of the F.E. approximation ...

    • Numerical model for the endocytosis of nanoparticles 

      Benet Cerdà, Eduard (Universitat Politècnica de Catalunya, 2013-01-18)
      Tesina
      Accés obert
      The endocytosis is the process used by cells to uptake selected external particles such as viruses, drugs or microorganisms among others. The receptor mediated endocytosis is one of the most effective methods to capture ...