Enviaments recents

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  A three-dimensional FEM–DEM technique for predicting the evolution of fracture in geomaterials and concrete 

  Zárate Araiza, José Francisco; Cornejo, Alejandro; Oñate Ibáñez de Navarra, Eugenio (Springer, 2017-12-19)
  Article
  Accés obert

  © 2017 OWZ This paper extends to three dimensions (3D), the computational technique developed by the authors in 2D for predicting the onset and evolution of fracture in a finite element mesh in a simple manner based on ...
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  Discrete/finite element modelling of rock cutting with TBM disc cutter 

  Labra, C.; Rojek, Jerzy; Oñate Ibáñez de Navarra, Eugenio (2017-03)
  Article
  Accés obert

  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 ...
• Approximating the Basset force by optimizing the method of van Hinsberg et al. 

  Casas González, Guillermo; Ferrer Ferré, Àlex; Oñate Ibáñez de Navarra, Eugenio (2018-01)
  Article
  Accés restringit per política de l'editorial

  In this work we put the method proposed by van Hinsberg et al. [29] to the test, highlighting its accuracy and efficiency in a sequence of benchmarks of increasing complexity. Furthermore, we explore the possibility of ...
• Finite element modelling of fracture propagation in saturated media using quasi-zero-thickness interface elements 

  Pouplana Sarda, Ignasi de; Oñate Ibáñez de Navarra, Eugenio (Elsevier, 2018-04)
  Article
  Accés restringit per política de l'editorial

  A new computational technique for the simulation of 2D and 3D fracture propagation processes in saturated porous media is presented. A non-local damage model is conveniently used in conjunction with interface elements to ...
• Accurate FIC-FEM formulation for the multidimensional steady-state advection–diffusion–absorption equation 

  Oñate Ibáñez de Navarra, Eugenio; Nadukandi, Prashanth; Miquel Canet, Juan (2017-12)
  Article
  Accés restringit per política de l'editorial

  In this paper we present an accurate stabilized FIC-FEM formulation for the multidimensional steady-state advection-diffusion-absorption equation.The stabilized formulation is based on the Galerkin FEM solution of the ...
• 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
  Accés restringit per política de l'editorial

  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
  Accés restringit per política de l'editorial

  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 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
  Accés restringit per política de l'editorial

  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 ...
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  A time-domain second-order FEM model for the wave diffraction radiation problem. Validation with a semisubmersible platform 

  Serván Camas, Borja; Gutiérrez Romero, José Enrique; García Espinosa, Julio (2018-03)
  Article
  Accés obert
• Real-time micro-modelling of city evacuations 

  Löhner, Rainald; Haug, Eberhard; Zinggerling, Claudio; Oñate Ibáñez de Navarra, Eugenio (Springer, 2018-01)
  Article
  Accés restringit per política de l'editorial

  A methodology to integrate geographical information system (GIS) data with large-scale pedestrian simulations has been developed. Advances in automatic data acquisition and archiving from GIS databases, automatic input for ...
• RC structures cyclic behavior simulation with a model integrating plasticity, damage, and bond-slip 

  Alfarah, Bashar; Murcia Delso, Juan; López Almansa, Francisco; Oller Martínez, Sergio Horacio (Wiley, 2018)
  Article
  Accés restringit per política de l'editorial

  Copyright © 2017 John Wiley & Sons, Ltd. The behavior of reinforced concrete structures under severe demands, as strong ground motions, is highly complex; this is mainly due to the complexity of concrete behavior and to ...
• A finite element model for fluid–structure interaction problems involving closed membranes, internal and external fluids 

  Ryzhakov, Pavel; Oñate Ibáñez de Navarra, Eugenio (2017-11)
  Article
  Accés restringit per política de l'editorial

  In this paper we propose a Finite Element model for analyzing closed membranes (“bags”) interacting with internal and external (surrounding) fluids. The approach is based on embedding a Lagrangian monolithic model describing ...

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