Recent Submissions

  • Analysis of the discharge capacity of radial gated-spillways using CFD and ANN: Oliana Dam case study 

    Salazar González, Fernando; Morán Moya, Rafael; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2013-03)
    Article
    Restricted access - publisher's policy
    The paper focuses on the analysis of radial-gated spillways, which is carried out by the solution of a numerical model based on the finite element method (FEM). The Oliana Dam is considered as a case study and the discharge ...
  • A compressible Lagrangian framework for the simulation of the underwater implosion of large air bubbles 

    Kamran, Kamran; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2013-03)
    Article
    Restricted access - publisher's policy
    A fully Lagrangian compressible numerical framework for the simulation of underwater implosion of a large air bubble is presented. Both air and water are considered compressible and the equations for the Lagrangian shock ...
  • A fast and accurate method to solve the incompressible Navier-Stokes equations 

    Idelsohn Barg, Sergio Rodolfo; Nigro, Norberto; Gimenez, Juan; Rossi, Riccardo; Martí, Julio Marcelo (2013-02)
    Article
    Restricted access - publisher's policy
    Purpose: The purpose of this paper is to highlight the possibilities of a novel Lagrangian formulation in dealing with the solution of the incompressible Navier-Stokes equations with very large time steps. Design/meth ...
  • A contact algorithm for shell problems via Delaunay-based meshing of the contact domain 

    Kamran, Kamran; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2013-07)
    Article
    Restricted access - publisher's policy
    The simulation of the contact within shells, with all of its different facets, represents still an open challenge in Computational Mechanics. Despite the effort spent in the development of techniques for the simulation of ...
  • Multi-scale analysis of the early damage mechanics of ferritized ductile iron 

    Fernandino, D.O.; Cisilino, A. P.; Toro, S.; P.J., Sánchez (Springer, 2017-09)
    Article
    Open Access
    A multi-scale analysis of the linear elastic and the early damage stages of ferritic ductile iron is introduced in this work. The methodology combines numerical and experimental analyses in the macro and micro scales. ...
  • Optimization-based design of a heat flux concentrator 

    Peralta, Ignacio; Fachinotti, Víctor D.; Ciarbonetti, Ángel A. (Nature Publishing Group, 2017)
    Article
    Open Access
    To gain control over the diffusive heat flux in a given domain, one needs to engineer a thermal metamaterial with a specific distribution of the generally anisotropic thermal conductivity throughout the domain. Until now, ...
  • Modelo multi-escala con fracturas cohesivas en ambas escalas 

    Labanda, Nicolás A.; Giusti, Sebastián M.; Luccioni, Bibiana M. (2016-11)
    Article
    Open Access
    En este trabajo se presentan resultados preliminares sobre un modelo multi-escala semiconcurrente para materiales con ablandamiento. Se propone una formulación mixta para la simulación de discontinuidades en los desplazamientos ...
  • Meso-scale fracture simulation using an augmented Lagrangian approach 

    Labanda, Nicolás A.; Giusti, Sebastián M.; Luccioni, Bibiana M. (2016-10)
    Article
    Open Access
    A cohesive zone model implemented in an augmented Lagrangian functional is used for simulation of meso-scale fracture problems in this paper. The method originally developed by Lorentz is first presented in a rigorous ...
  • Inverse finite element modeling of shells using the degenerate solid approach 

    Fachinotti, Víctor D.; Albanesi, Alejandro E.; Martínez Valle, José M. (2015-09)
    Article
    Restricted access - publisher's policy
    The Inverse Finite Element Method (IFEM) for degenerate solid shells is introduced. IFEM allows determining the undeformed shape of a body (in this case, a shell-like body) such that it attains a desired shape after large ...
  • Spectral analysis of the Beznar dam accelerogram. Comparison with results in the northeastern of Spain 

    Canas Torres, José Antonio; Barbat Barbat, Horia Alejandro; Pujades Beneit, Lluís; Egozcue Rubí, Juan José; Sarrate Ramos, Josep (1991-12)
    Article
    Open Access
    Numerical analysis applied to the Beznar dam accelerograms (longitudinal and transversal components) shows that the Fourier amplitude spectrum is a good approximation to the pseudo-velocity spectra. Thís fact makes possible ...
  • Viscoelasticity and damage model for creep behaviour of historical masonry structures 

    Roca Fabregat, Pedro; Cervera Ruiz, Miguel; Pelà, Luca; Clemente Ortega, Roberto; Chiumenti, Michèle (2012-11-23)
    Article
    Open Access
    This paper presents a continuum model for the simulation of the viscous effects and the long-term damage accumulation in masonry structures. The rheological model is based on a generalized Maxwell chain representation ...
  • Computational modeling of high-performance steel fiber reinforced concrete using a micromorphic approach 

    Huespe, Alfredo Edmundo; Oliver Olivella, Xavier; Mora, Diego Fernando (2013-12)
    Article
    Open Access
    A finite element methodology for simulating the failure of high performance fiber reinforced concrete composites (HPFRC), with arbitrarily oriented short fibers, is presented. The composite material model is based on a ...

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