Recent Submissions

  • 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
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    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
    Open Access
    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
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    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
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    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 ...
  • Stress-accurate Mixed FEM for soil failure under shallow foundations involving strain localization in plasticity 

    Benedetti, Lorenzo; Cervera Ruiz, Miguel; Chiumenti, Michèle (2015-03)
    Article
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    The development of slip lines, due to strain localization, is a common cause for failure of soil in many circumstances investigated in geotechnical engineering. Through the use of numerical methods - like finite elements ...
  • A two-step monolithic method for the efficient simulation of incompressible flows 

    Ryzhakov, Pavel; Cotela Dalmau, Jordi; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2014-01)
    Article
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    We propose a simple technique for improving computationally the efficiency of monolithic velocity–pressure solvers for incompressible flow problems. The idea consists in solving the discrete nonlinear system of governing ...
  • A mixed three-field FE formulation for stress accurate analysis including the incompressible limit 

    Chiumenti, Michèle; Cervera Ruiz, Miguel; Codina, Ramon (2015-01)
    Article
    Open Access
    In previous works, the authors have presented the stabilized mixed displacement/pressure formulation to deal with the incompressibility constraint. More recently, the authors have derived stable mixed stress/displacement ...
  • Finite element modeling of free surface flow in variable porosity media 

    Larese De Tetto, Antonia; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2014-12)
    Article
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    The aim of the present work is to present an overview of some numerical procedures for the simulation of free surface flows within a porous structure. A particular algorithm developed by the authors for solving this type ...
  • Numerical homogenization for composite materials analysis: comparison with other micro mechanical formulations 

    Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier; Salomón, Ramón Omar (2015-04)
    Article
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    This work presents a two-scale homogenization procedure to analyze three dimension composite structures by FEM. The theory implemented is compared with other micro-structural formulations: micro models and serial parallel ...
  • Seismic and wind vulnerability assessment for the GAR-13 global risk assessment 

    Yamín Lacouture, Luis Eduardo; Hurtado Chaparro, Alvaro Ivan; Barbat Barbat, Horia Alejandro; Cardona Arboleda, Omar Dario (2014-12-01)
    Article
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    A general methodology to evaluate vulnerability functions suitable for a probabilistic global risk assessment is proposed. The methodology is partially based in the methodological approach of the Multi-hazard Loss Estimation ...

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