Recent Submissions

  • Explicit parametric solutions of lattice structures with proper generalized decomposition (PGD): Applications to the design of 3D-printed architectured materials 

    Sibileau, Alberto; Auricchio, Ferdinando; Morganti, Simone; Díez, Pedro (2018-01-10)
    Article
    Restricted access - publisher's policy
    Architectured materials (or metamaterials) are constituted by a unit-cell with a complex structural design repeated periodically forming a bulk material with emergent mechanical properties. One may obtain specific macro-scale ...
  • HDG-NEFEM with degree adaptivity for stokes flows 

    Sevilla Càrdenas, Ruben; Huerta, Antonio (2018-02-07)
    Article
    Restricted access - publisher's policy
    The NURBS-enhanced finite element method (NEFEM) combined with a hybridisable discontinuous Galerkin (HDG) approach is presented for the first time. The proposed technique completely eliminates the uncertainty induced by ...
  • Flexoelectricity in bones 

    Vazquez Sancho, Fabian; Abdollahi Hosnijeh, Amir; Damjanovic, Dragan; Catalan, Gustau (2018-01-18)
    Article
    Restricted access - publisher's policy
    ones generate electricity under pressure, and this electromechanical behavior is thought to be essential for bone's self-repair and remodeling properties. The origin of this response is attributed to the piezoelectricity ...
  • Estimation of the dispersion error in the numerical wave number of standard and stabilized finite element approximations of the Helmholtz equation 

    Steffens, Lindaura Maria; Parés Mariné, Núria; Díez, Pedro (John Wiley & sons, 2011-06-10)
    Article
    Open Access
    An estimator for the error in the wave number is presented in the context of finite element approximations of the Helmholtz equation. The proposed estimate is an extension of the ideas introduced in Steffens and D'iez ...
  • Numerical integration over 2D NURBS-shaped domains with applications to NURBS-enhanced FEM 

    Sevilla Càrdenas, Ruben; Fernandez Mendez, Sonia (2011-10-03)
    Article
    Open Access
    This paper focuses on the numerical integration of polynomial functions along non-uniform rational B-splines (NURBS) curves and over 2D NURBS-shaped domains, i.e. domains with NURBS boundaries. The integration of the ...
  • Physiology-based model of cell viscoelasticity 

    Muñoz Romero, José; Albo Guijarro, Santiago (2013)
    Article
    Open Access
    The measured viscoelastic properties of biological tissues is the result of the passive and active response of the cells. We propose an evolution law of the remodeling process in the cytoskeleton which is able to mimic the ...
  • A new numerical method for solving the acoustic radiation problem 

    Poblet-Puig, Jordi; Shanin, Andrey (2018-03)
    Article
    Restricted access - publisher's policy
    A numerical method of solving the problem of acoustic wave radiation in the presence of a rigid scatterer is described. It combines the finite element method and the boundary algebraic equation one. In the proposed method, ...
  • Goal-oriented h-adaptivity for the Helmholtz equation: error estimates, local indicators and refinement strategies 

    Steffens, Lindaura; Parés Mariné, Núria; Díez, Pedro (2011-01-14)
    Article
    Open Access
    This paper introduces a new goal-oriented adaptive technique based on a simple and effective post-process of the finite element approximations. The goal-oriented character of the estimate is achieved by analyzing both the ...
  • Preface 

    Huerta, Antonio; Rodríguez Ferran, Antonio (2004-10)
    Article
    Open Access
  • Hydraulic fracturing in cells and tissues: fracking meets cell biology 

    Arroyo Balaguer, Marino; Trepat, Xavier (2017-02-01)
    Article
    Open Access
    The animal body is largely made of water. A small fraction of body water is freely flowing in blood and lymph, but most of it is trapped in hydrogels such as the extracellular matrix (ECM), the cytoskeleton, and chromatin. ...
  • Extended hybridizable discontinuous galerkin with heaviside enrichment for heat bimaterial problems 

    Gurkan, Ceren; Kronbichler, Martin; Fernandez Mendez, Sonia (2017-01-28)
    Article
    Open Access
    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. ...
  • Flexoelectric MEMS: towards an electromechanical strain diode 

    Bhaskar, Umesh Kumar; Banerjee, Nirupam; Abdollahi Hosnijeh, Amir; Solanas, E.; Rijnders, Guus; Catalan, Gustau (2016)
    Article
    Open Access
    Piezoelectricity and flexoelectricity are two independent but not incompatible forms of electromechanical response exhibited by nanoscale ferroelectrics. Here, we show that flexoelectricity can either enhance or suppress ...

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