Exploració per tema "Meshless"

Ara es mostren els items 1-11 de 11

    • A 2.5D coupled FEM–SBM methodology for soil–structure dynamic interaction problems 

      Liravi, Hassan; Arcos Villamarín, Robert; Clot Razquin, Arnau; Conto Quispe, Kenny Fernando; Romeu Garbí, Jordi (Elsevier, 2022-01-01)
      Article
      Accés obert
      In this paper, a novel numerical methodology to deal with longitudinally invariant soil–structure interaction problems is proposed. The methodology uses the finite element method to model the structure and the singular ...

    • A hybrid SBM-MFS methodology to deal with wave propagation 

      Liravi, Hassan; Arcos Villamarín, Robert; Clot Razquin, Arnau; Godinho, Luis; Romeu Garbí, Jordi (2022)
      Text en actes de congrés
      Accés obert
      In this paper, a novel hybrid 2.5D SBM-MFS approach is formulated and developed in the frequency domain. This approach inherits the accuracy of MFS while keeping the robustness presented by the SBM. The MFS is employed to ...

    • A-posteriori error estimation for the finite point method with applications to compressible flow 

      Ortega, Enrique; Flores Le Roux, Roberto Maurice; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2017-04)
      Article
      Accés obert
      An a-posteriori error estimate with application to inviscid compressible flow problems is presented. The estimate is a surrogate measure of the discretization error, obtained from an approximation to the truncation terms ...

    • An explicit total Lagrangian Fragile Points Method for finite deformation of hyperelastic materials 

      Mountris, Konstantinos A.; Li, Mingjing; Schilling, Richard; Dong, Leiting; Atluri, Satya N.; Casals Gelpí, Alicia; Wurdemann, Helge (2023-06)
      Article
      Accés obert
      We present a novel meshless algorithm based on the Fragile Points Method (FPM) for hyperelastic materials undergoing finite deformation. In contrast to mesh-based methods, where mesh distortion may pose numerical challenges. ...

    • Análisis comparativo entre funciones de forma maxent y de mínimos cuadrados ponderados en un método sin malla de colocación 

      Perazzo Maggi, Franco Orlando; Marchant, F. (Universitat Politècnica de Catalunya. CIMNE, 2017)
      Article
      Accés obert
      En el presente artículo se analiza el comportamiento de la función de forma basada en el principio de máxima entropía (maxent), en el contexto de un método sin malla con un esquema de colocación, comparando su resultado ...

    • Comparative accuracy and performance assessment of the finite point method in compressible flow problems 

      Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Flores Le Roux, Roberto Maurice (Elsevier, 2014-01-20)
      Article
      Accés restringit per política de l'editorial
      A comparative assessment of the Finite Point Method (FPM) is presented. Using a wing-fuselage configuration under transonic inviscid flow conditions as reference test case, the performance of the FPM flow solver is compared ...

    • Continuous blending of SPH with finite elements 

      Fernández Méndez, Sonia; Bonet, J; Huerta, Antonio (2005-06)
      Article
      Accés obert
      This paper proposes a methodology for the continuous blending of the finite element method and smooth particle hydrodynamics. The coupled approximation with finite elements and particles, and the discretization of the ...

    • Grand challenges for Smoothed Particle Hydrodynamics numerical schemes 

      Vacondio, Renato; Altomare, Corrado; De Leffe, Matthieu; Hu, Xiangyu; Le Touzé, David; Lind, Steven; Marongiu, Jean-Christophe; Marrone, Salvatore; Rogers, Benedict D.; Souto Iglesias, Antonio (Springer, 2021-05)
      Article
      Accés obert
      This paper presents a brief review of grand challenges of Smoothed Particle Hydrodynamics (SPH) method. As a meshless method, SPH can simulate a large range of applications from astrophysics to free-surface flows, to complex ...

    • Locking in the incompressible limit for the element-free Galerkin method 

      Huerta, Antonio; Fernández Méndez, Sonia (Wiley and Sons, 2001-04)
      Article
      Accés obert
      Volumetric locking (locking in the incompressible limit) for linear elastic isotropic materials is studied in the context of the element-free Galerkin method. The modal analysis developed here shows that the number of ...

    • Meshless approximations and lagrangian formulation to solve free surface flows 

      Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio; Storti, M (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2000)
      Text en actes de congrés
      Accés obert
      A meshless method is presented for the solution of the incompressible fluid flow equation using a lagrangian formulation. The interpolated function are those used in the moving least square approximations and the time ...

    • Time accurate consistently stabilized mesh-free methods for convection dominated problems 

      Huerta, Antonio; Fernández Méndez, Sonia (Wiley and Sons, 2003-01)
      Article
      Accés obert
      The behaviour of high-order time stepping methods combined with mesh-free methods is studied for the transient convection-diffusion equation. Particle methods, such as the element-free Galerkin (EFG) method, allow to easily ...