Enviaments recents

  • Modelo multi-escala con fracturas cohesivas en ambas escalas 

    Labanda, Nicolás A.; Giusti, Sebastián M.; Luccioni, Bibiana M. (2016-11)
    Article
    Accés obert
    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
    Accés restringit per política de l'editorial
    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
    Accés restringit per política de l'editorial
    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
    Accés obert
    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
    Accés obert
    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
    Accés obert
    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 ...
  • A local constitutive model for the discrete element method: application to geomaterials and concrete 

    Oñate Ibáñez de Navarra, Eugenio; Zárate Araiza, José Francisco; Miquel Canet, Juan; Santasusana Isach, Miquel; Celigueta Jordana, Miguel Ángel; Arrufat Garcia, Ferran; Gandikota, Varadaraju; Valiullin, Khaydar; Ring, Lev (Springer, 2015-06)
    Article
    Accés obert
    This paper presents a local constitutive model for modelling the linear and non linear behavior of soft and hard cohesive materials with the discrete element method (DEM). We present the results obtained in the analysis ...
  • Estrategias e indicadores para la evaluación de la docencia en el marco del EEES 

    García-Berro Montilla, Enrique; Dapia de Dios, Francesc; Amblas Marondo, Gemma; Bugeda Castelltort, Gabriel; Roca Martín, Santiago (2009)
    Article
    Accés obert
    En este artículo se describen las estrategias que ha emprendido la Universidad Politécnica de Cataluña (UPC) para implantar las nuevas titulaciones de Ingeniería adaptadas al Espacio Europeo de Enseñanza Superior (EEES). ...
  • Analysis of Ultra Low Cycle Fatigue problems with the Barcelona plastic damage model and a new isotropic hardening law 

    Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbu, Lucia Gratiela; Barbat Barbat, Horia Alejandro; de Jesus, A.M.P. (2015-04)
    Article
    Accés restringit per política de l'editorial
    This paper presents a plastic-damage formulation and a new isotropic hardening law, based on the Barcelona plastic damage model initially proposed by Lubliner et al. (1989) [1], which is capable of predicting steel failure ...
  • Mixed stabilized finite element methods in nonlinear solid mechanics. Part III: compressible and incompressible plasticity 

    Cervera Ruiz, Miguel; Chiumenti, Michèle; Benedetti, Lorenzo; Codina, Ramon (2015-03)
    Article
    Accés restringit per política de l'editorial
    This paper presents the application of a stabilized mixed strain/displacement finite element formulation for the solution of nonlinear solid mechanics problems involving compressible and incompressible plasticity. The ...

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