Envíos recientes

  • An augmented Lagrangian formulation to impose boundary conditions for distortion based mesh moving and curving 

    Ruiz Gironès, Eloi; Gargallo Peiró, Abel; Sarrate Ramos, Josep; Roca Navarro, Xevi (Elsevier, 2017)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    We formulate a mesh morphing technique as mesh distortion minimization problem constrained to weakly satisfy the imposed displacement of the boundary nodes. The method is devised to penalize the appearance of inverted ...
  • Approximation of immersed surfaces into a tetrahedral mesh generated by the meccano method 

    Socorro Marrero, Guillermo Valentín; Oliver Serra, Albert; Ruiz Gironès, Eloi; Cascón Barbero, José Manuel; Rodriguez Barrera, Eduardo; Escobar Sánchez, José M.; Montenegro Armas, Rafael; Sarrate Ramos, Josep (2017)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    In this paper, we present a new method to insert open surfaces into an existing tetrahedral mesh generated by the meccano method. The surfaces must be totally immersed in the mesh and must not intersect between them. The ...
  • Educating XXIst century civil engineers in Barcelona 

    Turmo Coderque, José; Estela Carbonell, M. Rosa; Chacón Flores, Rolando Antonio; Gironella Cobos, Xavier; Lloberas Valls, Oriol; Oliver Olivella, Xavier; Poblet-Puig, Jordi; Puigví Burniol, Maria Àngels; Valls del Barrio, Susanna; Díez, Pedro (2017)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    The educational programs of Civil Engineering schools have evolved to adapt to changes in society demands and regulations. Specifically, Civil Engineering curricula in Spain was highly impacted by the Bolonia Declaration ...
  • Geometric derivation of the microscopic stress: a covariant central force decomposition 

    Torres Sánchez, Alejandro; Vanegas, Juan Manuel; Arroyo Balaguer, Marino (2016-08)
    Artículo
    Acceso restringido por política de la editorial
    We revisit the derivation of the microscopic stress, linking the statistical mechanics of particle systems and continuum mechanics. The starting point in our geometric derivation is the Doyle-Ericksen formula, which states ...
  • Simulating debris impacts on hydrokinetic infrastructure 

    Aliseda, A; Bagi, A; Johnson, Jerome B; Duvoy, P. X.; Kasper, J. L; Kulchitsky, A; Villardi de Montlaur, Adeline de (2017)
    Comunicación de congreso
    Acceso abierto
    The discrete element method was applied to model the impact force of woody debris (trees) on hydrokinetic infrastructure in a river setting. The DEM model, termed the Hydrokinetic Debris Impact Simulator (HDIS) was used ...
  • An equilibrated fluxes approach to the certified descent algorithm for shape optimization using conforming finite element and discontinuous Galerkin discretizations 

    Giacomini, Matteo (2017-09-07)
    Artículo
    Acceso restringido por política de la editorial
    The certified descent algorithm (CDA) is a gradient-based method for shape optimization which certifies that the direction computed using the shape gradient is a genuine descent direction for the objective functional under ...
  • Towards the modelling of ageing and atherosclerosis effects in ApoE-/- mice aortic tissue 

    Waffenschmidt, T., Tobias; Cilla, Myriam; Sáez Viñas, Pablo; Pérez, Marta M.; Menzel, Andreas; Peña, E. (2016-08-16)
    Artículo
    Acceso abierto
    The goal of this work consists in a quantitative analysis and constitutive modelling of ageing processes associated to plaque formation in mice arteries. Reliable information on the characteristic evolution of pressure–stretch ...
  • Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures 

    Ruiz Gironès, Eloi; Oliver Serra, Albert; Socorro Marrero, Guillermo Valentín; Cascón Barbero, José Manuel; Escobar Sánchez, José M.; Montenegro Armas, Rafael; Sarrate Ramos, Josep (John Wiley & Sons, 2018)
    Artículo
    Acceso restringido por política de la editorial
    In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated ...
  • A non-intrusive proper generalized decomposition scheme with application in biomechanics 

    Zou, Xi; Conti, Michele; Díez, Pedro; Auricchio, Ferdinando (John Wiley & Sons, 2017-09-07)
    Artículo
    Acceso restringido por política de la editorial
    Proper generalized decomposition (PGD) is often used for multiquery and fast-response simulations. It is a powerful tool alleviating the curse of dimensionality affecting multiparametric partial differential equations. ...
  • Generalized parametric solutions in Stokes flow 

    Díez, Pedro; Zlotnik, Sergio; Huerta, Antonio (2017-11-01)
    Artículo
    Acceso restringido por política de la editorial
    Design optimization and uncertainty quantification, among other applications of industrial interest, require fast or multiple queries of some parametric model. The Proper Generalized Decomposition (PGD) provides a separable ...
  • Numerical modelling of multi-phase multi-component reactive transport in the Earth's interior 

    Oliveira, Beñat; Afonso, Juan Carlos; Zlotnik, Sergio; Díez, Pedro (2018-01-01)
    Artículo
    Acceso restringido por política de la editorial
    We present a conceptual and numerical approach to model processes in the Earth's interior that involve multiple phases that simultaneously interact thermally, mechanically and chemically. The approach is truly multiphase ...
  • AAR-based decomposition method for lower bound limit analysis 

    Muñoz Romero, José; Rabiei, Nima (2015-12-01)
    Artículo
    Acceso abierto
    Despite the recent progress in optimisation techniques, finite-element stability analysis of realistic three-dimensional problems is still hampered by the size of the resulting optimisation problem. Current solvers may ...

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