Ara es mostren els items 188-207 de 220

    • Seguiment, valoració i explotació d’un nou model docent 

      Huerta, Antonio; Puigví Burniol, Maria Àngels (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-02-11)
      Comunicació de congrés / Text en actes de congrés
      Accés obert
      Per tal de preparar la transició als nous graus, s’ha desenvolupat un nou model docent en els dos primers cursos de totes les titulacions del centre, Enginyeria de Camins, Enginyeria Geològica i Enginyeria Tècnica d’Obres ...
    • Separated response surfaces for flows in parametrised domains: comparison of a priori and a posteriori PGD algorithms 

      Giacomini, Matteo; Borchini, Luca; Sevilla Cárdenas, Rubén; Huerta, Antonio (2021-11-15)
      Article
      Accés obert
      Reduced order models (ROM) are commonly employed to solve parametric problems and to devise inexpensive response surfaces to evaluate quantities of interest in real-time. There are many families of ROMs in the literature ...
    • Shock capturing for discontinuous Galerkin methods 

      Casoni Rero, Eva; Huerta, Antonio (2009-04-23T10:42:49Z)
      Text en actes de congrés
      Accés obert
      This work is devoted to solve scalar hyperbolic conservation laws in the presence of strong shocks with discontinuous Galerkin methods (DGM). A standard approach is to use limiting strategies in order to avoid oscillations ...
    • Shock-capturing with discontinuous garlekin methods 

      Huerta, Antonio; Casoni Rero, Eva (2009-06-08T08:32:41Z)
      Text en actes de congrés
      Accés obert
      A shock capturing strategy for high order Discontinuous Galerkin methods for conservation laws is proposed. We present a method in the one-dimensional case based on the introduction of artificial viscosity into the ...
    • Simulación numérica del vertido y consolidación de residuos semi-solidos industriales y mineros 

      Rodríguez Ferran, Antonio; Huerta, Antonio (1992-09)
      Article
      Accés obert
      Los residuos semi-sólidos son desechos de diversas actividades productivas con un contenido de agua muy elevado. El tratamiento más común es el vertido en grandes balsas de almacenamiento. La simulación del llenado y de ...
    • Simulating squeeze flows in multiaxial laminates: towards fully 3D mixed formulations 

      Ibáñez, Rubén; Abisset-Chavanne, Emmanuelle; Chinesta, Francisco; Huerta, Antonio (2017-10)
      Article
      Accés restringit per política de l'editorial
      Thermoplastic composites are widely considered in structural parts. In this paper attention is paid to squeeze flow of continuous fiber laminates. In the case of unidirectional prepregs, the ply constitutive equation is ...
    • Solution of geometrically parametrised problems within a CAD environment via model order reduction 

      Sevilla Cárdenas, Rubén; Zlotnik, Sergio; Huerta, Antonio (2020-01-01)
      Article
      Accés obert
      The main objective of this work is to describe a general and original approach for computing an off-line solution for a set of parameters describing the geometry of the domain. That is, a solution able to include information ...
    • Space-time NURBS-enhanced finite elements for free-surface flows in 2D 

      Stavrev, A.; Knechtges, P.; Elgeti, S.; Huerta, Antonio (2016-10-07)
      Article
      Accés restringit per política de l'editorial
      The accuracy of numerical simulations of free-surface flows depends strongly on the computation of geometric quantities like normal vectors and curvatures. This geometrical information is additional to the actual degrees ...
    • Stability of anchored sheet wall in cohesive-frictional soils by FE limit analysis 

      Muñoz Romero, José; Lyamin, Andrei; Huerta, Antonio (2013-06-03)
      Article
      Accés obert
    • Stability of incompressible formulations enriched with X-FEM 

      Legrain, G; Moes, N; Huerta, Antonio (2008-04)
      Article
      Accés obert
      The treatment of (near-)incompressibility is a major concern for applications involving rubber-like materials, or when important plastic ows occurs as in forming processes. The use of mixed nite element methods is known ...
    • Stabilized updated Lagrangian corrected SPH for explicit dynamic problems 

      Vidal Seguí, Yolanda; Bonet, J; Huerta, Antonio (Wiley and Sons, 2007-03)
      Article
      Accés obert
      Smooth Particle Hydrodynamics with a total Lagrangian formulation are, in general, more robust than nite elements for large distortion problems. Nevertheless, updating the reference con¯guration may still be necessary in ...
    • Strict error bounds for linear solid mechanics problems using a subdomain-based flux-free method 

      Cottereau, R; Díez, Pedro; Huerta, Antonio (2009-09)
      Article
      Accés obert
      We discuss, in this paper, a flux-free method for the computation of strict upper bounds of the energy norm of the error in a Finite Element (FE) computation. The bounds are strict in the sense that they refer to the ...
    • Strict upper and lower boundswith adaptive remeshing in limit state analysis 

      Muñoz, José J.; Huerta, Antonio; Bonet Carbonell, Javier; Peraire Guitart, Jaume (2009-04-03T10:56:47Z)
      Text en actes de congrés
      Accés obert
      By writing the limit state analysis as an optimisation problem, and after resorting to suitable discretisations of the stress and velocity field, we compute strict bounds of the load factor. The optimisation problem is ...
    • Structural health monitoring by combining machine learning and dimensionality reduction techniques 

      Quaranta, Giacomo; Lopez, Elena; Abisset-Chavanne, Emmanuelle; Louis Duval, Jean; Huerta, Antonio; Chinesta, Francisco (Universitat Politècnica de Catalunya. CIMNE, 2019)
      Article
      Accés obert
      Structural Health Monitoring is of major interest in many areas of structural mechanics. This paper presents a new approach based on the combination of dimensionality reduction and data-mining techniques able to differentiate ...
    • Structural health monitoring by combining machine learning and dimensionality reduction techniques 

      Quaranta, Giacomo; López Tomás, Elena; Abisset-Chavanne, Emmanuelle; Duval, Jean Louis; Huerta, Antonio; Chinesta Soria, Francisco (2019-01-01)
      Article
      Accés obert
      Structural Health Monitoring is of major interest in many areas of structural mechanics. This paper presents a new approach based on the combination of dimensionality reduction and data-mining techniques able to differentiate ...
    • Subdomain-based flux-free a posteriori error estimators 

      Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (2006-01)
      Article
      Accés obert
      A new residual type flux-free error estimator is presented. It estimates upper and lower bounds of the error in energy norm. The proposed approach precludes the main drawbacks of standard residual type estimators, circumvents ...
    • SUPG-based stabilization using a separated representations approach 

      González, D.; Debeugny, L.; Cueto, E.; Chinesta, F.; Díez, Pedro; Huerta, Antonio (2010-04)
      Article
      Accés obert
      We have developed a new method for the construction of Streamline Upwind Petrov Galerkin (SUPG) stabilization techniques for the resolution of convection-diffusion equations based on the use of separated representations inside ...
    • Tensor representation of non-linear models using cross approximations 

      Aguado, José Vicente; Borzacchiello, Domenico; Kollepara, Kiran Sagar; Chinesta Soria, Francisco; Huerta, Antonio (2019-10-01)
      Article
      Accés obert
      Tensor representations allow compact storage and efficient manipulation of multi-dimensional data. Based on these, tensor methods build low-rank subspaces for the solution of multi-dimensional and multi-parametric models. ...
    • The computation of bounds for linear-functional outputs of weak solutions to the two-dimensional elasticity equations 

      Parés Mariné, Núria; Bonet, J; Huerta, Antonio; Peraire Guitart, Jaume (2006-01)
      Article
      Accés obert
      We present a method for the computation of upper and lower bounds for linear-functional outputs of the exact solutions to the two dimensional elasticity equations. The method can be regarded as a generalization of the well ...
    • The efficient computation of bounds for functionals of finite element solutions in large strain elasticity 

      Bonet, J; Huerta, Antonio; Peraire Guitart, Jaume (2002-09)
      Article
      Accés obert
      We present an implicit a posteriori finite element procedure to compute bounds for functional outputs of finite element solutions in large strain elasticity. The method proposed relies on the existence of a potential energy ...