Enviaments recents

  • Numerical estimation of the bearing capacity of resistance spot welds in martensitic boron steels using a J-integral fracture criterion 

    Dorribo Dorribo, Daniel; Greve, Lars; Díez, Pedro; Arias Vicente, Irene; Larráyoz Izcara, Xabier (2018-08-01)
    Article
    Accés restringit per política de l'editorial
    Predicting the bearing capacity of resistance spot welds (RSW) during vehicle crash tests has become a crucial task for the automotive industry, since the recent introduction of advanced high strength steels (AHSS) such ...
  • Piezoelectric mimicry of flexoelectricity 

    Abdollahi Hosnijeh, Amir; Vazquez Sancho, Fabian; Catalan, Gustau (American Institute of Physics (AIP), 2018-11-15)
    Article
    Accés obert
    The origin of “giant” flexoelectricity, orders of magnitude larger than theoretically predicted, yet frequently observed, is under intense scrutiny. There is mounting evidence correlating giant flexoelectriclike effects ...
  • An upwind cell centred Total Lagrangian finite volume algorithm for nearly incompressible explicit fast solid dynamic applications 

    Haider, Jibran; Lee, Chun Hean; Gil, Antonio; Huerta, Antonio; Bonet, Javier (2018-10-01)
    Article
    Accés restringit per política de l'editorial
    The paper presents a new computational framework for the numerical simulation of fast large strain solid dynamics, with particular emphasis on the treatment of near incompressibility. A complete set of first order hyperbolic ...
  • A locking-free face-centred finite volume (FCFV) method for linear elastostatics 

    Sevilla, Rubén; Giacomini, Matteo; Huerta, Antonio (2019-02-01)
    Article
    Accés restringit per política de l'editorial
    A face-centred finite volume (FCFV) method is proposed for linear elastostatic problems. The FCFV is a mixed hybrid formulation, featuring a system of first-order equations, that defines the unknowns on the faces (edges ...
  • A superconvergent HDG method for stokes flow with strongly enforced symmetry of the stress tensor 

    Giacomini, Matteo; Karkoulias, Alexandros; Sevilla, Rubén; Huerta, Antonio (2018-12)
    Article
    Accés restringit per política de l'editorial
    This work proposes a superconvergent hybridizable discontinuous Galerkin (HDG) method for the approximation of the Cauchy formulation of the Stokes equation using same degree of polynomials for the primal and mixed variables. ...
  • Sampling-based stochastic analysis of the PKN model for hydraulic fracturing 

    Garikapati, Hasini; V. Verhoosel, Clemens; van Brummelen, Harald; Zlotnik, Sergio; Díez, Pedro (2018-10-02)
    Article
    Accés obert
    Hydraulic fracturing processes are surrounded by uncertainty, as available data is typically scant. In this work, we present a sampling-based stochastic analysis of the hydraulic fracturing process by considering various ...
  • Algebraic PGD for tensor separation and compression: an algorithmic approach 

    Díez, Pedro; Zlotnik, Sergio; García González, Alberto; Huerta, Antonio (2018-07)
    Article
    Accés obert
    Proper Generalized Decomposition (PGD) is devised as a computational method to solve high-dimensional boundary value problems (where many dimensions are associated with the space of parameters defining the problem). The ...
  • A superconvergent hybridisable discontinuous Galerkin method for linear elasticity 

    Sevilla, Rubén; Giacomini, Matteo; Karkoulias, Alexandros; Huerta, Antonio (John Wiley & sons, 2018-10-12)
    Article
    Accés restringit per política de l'editorial
    The first superconvergent hybridisable discontinuous Galerkin method for linear elastic problems capable of using the same degree of approximation for both the primal and mixed variables is presented. The key feature of ...
  • Opposite subduction polarity in adjacent plate segments 

    Peral, Mireia; Kiraly, Agnes; Zlotnik, Sergio; Funiciello, Francesca; Fernandez Ortiga, Manel; faccenna, claudio; Vergés, Jaume (2018-09)
    Article
    Accés restringit per política de l'editorial
    Active and fossil subduction systems consisting of two adjacent plates with opposite retreating directions occur in several areas on Earth, as the Mediterranean or Western Pacific. The goal of this work is to better ...
  • 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 restringit per política de l'editorial
    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 ...
  • Eigenvalue and eigenmode synthesis in elastically coupled subsystems 

    Magrans Fontrodona, Francesc Xavier; Poblet-Puig, Jordi (2018-10-13)
    Article
    Accés restringit per política de l'editorial
    A method to synthesize the modal characteristics of a system from the modal characteristics of its subsystems is proposed. The interest is focused on those systems with elastic links between the parts which is the main ...
  • A simple microstructural viscoelastic model for flowing foams 

    Ibáñez, Rubén; Scheuer, Adrien; Abisset-Chavanne, Emmanuelle; Chinesta, Francisco; Huerta, Antonio; Keunings, Roland (2018-04-28)
    Article
    Accés restringit per política de l'editorial
    The numerical modelling of forming processes involving the flow of foams requires taking into account the different problem scales. Thus, in industrial applications a macroscopic approach is suitable, whereas the macroscopic ...

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