Now showing items 1-18 of 18

    • Análisis de problemas de choque e impacto entre sólidos deformables por el Método de los Elementos Finitos 

      Miquel Canet, Juan; Oñate Ibáñez de Navarra, Eugenio; García Garino, Carlos Gabriel; Botello Rionda, Salvador; Flores, Fernando Gabriel; Rojek, Jerzy (International Centre for Numerical Methods in Engineering (CIMNE), 1994)
      Book
      Open Access
      El trabajo que se expone ha hecho uso de los últimos avances en mecánica computacional, métodos numéricos, visualización y algoritmos de cálculo para obtener un programa de ordenador para simulación de problemas de choque ...
    • CBS stabilization in dynamics of solids using explicit time integration 

      Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio; Taylor, R L (2004)
      Conference report
      Open Access
      The characteristic based split (CBS) stabilization procedure developed originally in fluid mechanics has been adapted successfully to solid mechanics problems. The CBS algorithm has been implemented within a finite element ...
    • Comparative study of different discrete element models and evaluation of equivalent micromechanical parameters 

      Rojek, Jerzy; Labra, C.; Su, O.; Oñate Ibáñez de Navarra, Eugenio (2012-06)
      Article
      Open Access
      Comparative studies of different discrete element models of a rock-type material are presented. The discrete element formulation employs spherical particles with the cohesive interaction model combining linear elastic ...
    • Contact analysis in the discrete element method : modelling and computational aspects 

      Rojek, Jerzy; Labra, C.; Oñate Ibáñez de Navarra, Eugenio (2011)
      Conference report
      Restricted access - publisher's policy
      In the discrete element method (DEM) material is modelled as a collection of rigid particles of different shape interacting one with another with contact forces. The formulation presented in this work employs spherical ...
    • Coupling of FEFLO with SIMPACT 

      Arteaga Gómez, J.; Löhner, R; Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio (American Institute of Aeronautics and Astronautics (AIAA), 2006)
      Conference report
      Open Access
      The ability to predict accurately fluid-structure interaction problems is of fundamental importance for design, analysis and reconstruction in many areas of mechanical and civil engineering. In order to characterize the ...
    • Discrete element modelling of rock cutting processes interaction with evaluation of tool wear 

      Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio; Zárate Araiza, José Francisco; Recarey Morfa, Carlos Alexander (International Centre for Numerical Methods in Engineering (CIMNE), 2003)
      Book
      Open Access
      The document presents a numerical model of rocks and soils using spherical Discrete Elements, also called Distinct Elements. The motion of spherical elements is described by means of equations of rigid body dynamics. ...
    • Discrete/finite element modelling of rock cutting with a TBM disc cutter 

      Labra, C.; Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio (2017-03)
      Article
      Open Access
      This paper presents advanced computer simulation of rock cutting process typical for excavation works in civil engineering. Theoretical formulation of the hybrid discrete/finite element model has been presented. The discrete ...
    • Discrete/finite element modelling of rock cutting with TBM disc cutter 

      Labra, C.; Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio (2017-03)
      Article
      Open Access
      This paper presents advanced computer simulation of rock cutting process typical for excavation works in civil engineering. Theoretical formulation of the hybrid discrete/finite element model has been presented. The discrete ...
    • Efficient computational aspects for analyses of sheet stamping problems 

      Duffett, Gino; Cendoya, M.G.; Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio (International Centre for Numerical Methods in Engineering (CIMNE), 1997)
      Part of book or chapter of book
      Open Access
    • Enhanced rotation-free basic shell triangle for sheet stamping problems 

      Oñate Ibáñez de Navarra, Eugenio; Flores, Fernando G; Neamtu, L.; Weiler, R.; Rojek, Jerzy; Zárate Araiza, José Francisco (2004)
      Conference report
      Restricted access - publisher's policy
      An enhanced version of the rotation-free three node triangular BST shell element for sheet stamping analysis is presented. The original BST element is based on an assumed constant curvature field expressed in terms of the ...
    • Lagrangian analysis of multiscale particulate flows with the particle finite element method 

      Oñate Ibáñez de Navarra, Eugenio; Celigueta Jordana, Miguel Ángel; Latorre Sánchez, Juan Salvador; Casas González, Guillermo; Rossi, Riccardo; Rojek, Jerzy (Springer, 2014-05)
      Article
      Open Access
      We present a Lagrangian numerical technique for the analysis of flows incorporating physical particles of different sizes. The numerical approach is based on the particle finite element method (PFEM) which blends concepts ...
    • Modeling and simulation of the effect of blast loading on structures using and adaptive blending of discrete and finite element methods 

      Oñate Ibáñez de Navarra, Eugenio; Labra, C.; Zárate Araiza, José Francisco; Rojek, Jerzy (2011)
      External research report
      Open Access
    • Modelling and simulation of the effect of blast loading on structures using an adaptive blending of discrete and finite element methods 

      Labra, Carlos; Oñate Ibáñez de Navarra, Eugenio; Zárate Araiza, José Francisco; Rojek, Jerzy (CIMNE, 2011)
      Conference report
      Open Access
      We present a new computational model for predicting the effect of blast loading on structures. The model is based in the adaptive coupling of the finite element method (FEM) and the discrete element method (DEM) for the ...
    • Modelling and simulation of the effect of blast loading on structures using an adaptive blending of discrete and finite element methods 

      Labra, C.; Oñate Ibáñez de Navarra, Eugenio; Zárate Araiza, José Francisco; Rojek, Jerzy (2011)
      Conference report
      Open Access
      We present a new computational model for predicting the effect of blast loading on structures. The model is based in the adaptive coupling of the finite element method (FEM) and the discrete element method (DEM) for the ...
    • Multiscale analysis using a coupled discrete/finite element model 

      Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio (Techno press, 2008-03)
      Article
      Restricted access - publisher's policy
      The present paper presents multiscale modelling via coupling of the discrete and finite element methods. Theoretical formulation of the discrete element method using spherical or cylindrical particles has been briefly ...
    • Non linear dynamic analysis of solids using linear triangles and tetrahedra 

      Oñate Ibáñez de Navarra, Eugenio; Rojek, Jerzy; Taylor, R L; Zienkiewicz, Olgierd Cecil (2003)
      Conference report
      Open Access
      The basis of the FIC method is the satisfaction of the standard equations for balance of momentum (equilibrium of forces) and mass conservation in a domain of finite size and retaining higher order terms in the Taylor ...
    • Optimizing rock cutting through computer simulation 

      Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio; Labra, C.; Kazal, H.; Akerman, J. (2009)
      External research report
      Open Access
      This paper presents an original thermomechanical model of rock cutting with evaluation of tool wear. The model has been developed within the framework of the discrete element method, which is a suitable numerical method ...
    • Simulación del choque de vehículos por el método de los elementos finitos: programa "SIMPACT" 

      Miquel Canet, Juan; Oñate Ibáñez de Navarra, Eugenio; Rojek, Jerzy (1995-10)
      External research report
      Open Access
      En este trabajo se presentan las principales características del programa de ordenador “SIMPACT” desarrollado en el Centro Internacional de Métodos Numéricos en Ingeniería de Barcelona para la simulación numérica de problemas ...