Exploració per autor "Huerta, Antonio"
Ara es mostren els items 92-111 de 220
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Elliptic harbor wave model with perfectly matched layer and exterior bathymetry effects
Modesto Galende, David; Fernández Méndez, Sonia; Huerta, Antonio (2016-09)
Article
Accés obertStandard strategies for dealing with the Sommerfeld condition in elliptic mild-slope models require strong assumptions on the wave field in the region exterior to the computational domain. More precisely, constant bathymetry ... -
Encapsulated PGD algebraic toolbox operating with high-dimensional data
Díez, Pedro; Zlotnik, Sergio; García González, Alberto; Huerta, Antonio (2019-11-28)
Article
Accés obertIn its original conception, proper generalized decomposition (PGD) provides explicit parametric solutions, denoted as computational vademecums or digital abacuses, to parametric boundary value problems. The PGD approach ... -
Enrichissement des interpolations d'elements finis en utilisant des méthodes de particules
Huerta, Antonio; Fernández Méndez, Sonia; Díez, Pedro (2002-11)
Article
Accés obertIn the framework of meshless methods the interpolation is based on a distribution of particles : it is not necessary to define connectivities. In this methods the interpolation can be easily enriched, increasing the number ... -
Enrichment and coupling of the finite element and meshless methods
Huerta, Antonio; Fernández Méndez, Sonia (Wiley and Sons, 2000-09)
Article
Accés obertA mixed hierarchical approximation based on finite elements and meshless methods is presented. Two cases are considered. The first one couples regions where finite elements or meshless methods are used to interpolate: ... -
Error estimation and adaptivity for nonlinear FE analysis
Huerta, Antonio; Rodríguez Ferran, Antonio; Díez, Pedro (2002-03)
Article
Accés obertAn adaptive strategy for nonlinear finite-element analysis, based on the combination of error estimation and h-remeshing, is presented. Its two main ingredients are a residual-type error estimator and an unstructured ... -
Error estimation and adaptivity for nonlocal damage models
Rodríguez Ferran, Antonio; Huerta, Antonio (2000-11)
Article
Accés obertNonlocal damage models are typically used to model failure of quasi-brittle materials. Due to brittleness, the choice of a particular model or set of parameters can have a crucial influence on the structural response. To ... -
Error estimation and quality control
Díez, Pedro; Parés Mariné, Núria; Huerta, Antonio (John Wiley & sons, 2010-12-15)
Capítol de llibre
Accés restringit per política de l'editorial -
Error estimation for adaptive computations on shell structures
Díez, Pedro; Huerta, Antonio (2000-03)
Article
Accés obertThe finite element discretization of a shell structure introduces two kinds of errors: the error in the functional approximation and the error in the geometry approximation. The first is associated with the finite dimensional ... -
Error estimation including pollution assessment for nonlinear finite element analysis
Huerta, Antonio; Díez, Pedro (2000-01)
Article
Accés obertA residual type error estimator for nonlinear finite element analysis is introduced. This error estimator solves local problems avoiding both the computation of the flux jumps and the associated flux splitting procedure. ... -
Estimation of crack opening from a two-dimensional continuum-based finite element computation
Dufour, F.; Legrain, Dominique; Pijaudier-Cabot, Gilles; Huerta, Antonio (2012-11)
Article
Accés obertDamage models are capable of representing crack initiation and mimicking crack propagation within a continuum framework. Thus, in principle, they do not describe crack openings. In durability analyses of concrete structures ... -
Exact bounds for linear outputs of the advection-diffusion-reaction equation using flux-free error estimates
Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (2009-01)
Article
Accés obertThe paper introduces a methodology to compute strict upper and lower bounds for inear-functional outputs of the exact solutions of the advection-reaction-diffusion equation. The proposed approach is an alternative to the ... -
Extraction of a crack opening from a continuous approach using regularized damage models
Dufour, F.; Pijaudier-Cabot, Gilles; Choinska, M; Huerta, Antonio (2008-11)
Article
Accés restringit per política de l'editorialCrack opening governs many transfer properties that play a pivotal role in durability analyses. Instead of trying to combine continuum and discrete models in computational analyses, it would be attractive to derive from ... -
Étude de la stabilité d'une formulation incompressible traitée par X-FEM
Legrain, G; Moes, N; Huerta, Antonio (2006-06)
Article
Accés obertThe treatment of (near-)incompressibility is a major concern for the simulation of rubber-like parts, or forming processes. The use of mixed finite element methods is known to prevent the locking of the F.E. approximation ... -
Fast solution of elliptic harbor agitation problems under frequency-direction input spectra by model order reduction and NURBS-enhanced FEM
Modesto Galende, David; Ye, Boyi; Zlotnik, Sergio; Huerta, Antonio (2020-03-01)
Article
Accés obertMany harbor applications are based on the solution of linear elliptic agitation problems for many spectral conditions. One of the main goals consists in computing the linear combination of numerous simulations of the harbor ... -
Finite element analysis of bifurcation in nonlocal strain softening solids
Pijaudier-Cabot, Gilles; Huerta, Antonio (1991-09)
Article
Accés obertProgressive damage in brittle heterogeneous materials produces at the macroscopic level strain softening from which theoretical difficulties arise (e.g. ill-posedness and multiple bifurcation points). This characteristics ... -
Galerkin discontinuo local aplicado a problemas de ondas acústicas: condiciones de frontera absorbente locales de bajo orden
Cadenas, Carlos; Fernández Méndez, Sonia; Huerta, Antonio (2009-06-02T10:26:49Z)
Text en actes de congrés
Accés obertEn este trabajo se presenta una comparación de la solución numérica de la ecuación de Helmholtz utilizando el método de elementos finitos Galerkin Discontinuo Local (LDG) con varias condiciones de contorno absorbentes ... -
Generación automática de mallas no estructuradas y formadas exclusivamente por cuadriláteros sobre superficies curvas en IR3
Sarrate Ramos, Josep; Huerta, Antonio (Universitat Politècnica de Catalunya, 2002)
Article
Accés obertEn este artículo se presenta la extensión del algoritmo de generación de mallas no estructuradas y formadas exclusivamente por cuadriláteros GEN4U a superficies parametrizadas en IR3. Al igual que el algoritmo original, ... -
Generación automática de mallas no estructuradas y formadas exclusivamente por cuadriláteros sobre superficies curvas en R3
Sarrate Ramos, Josep; Huerta, Antonio (2002-05)
Article
Accés obertEn este artículo se presenta la extensión del algoritmo de generación de mallas no estructuradas y formadas exclusivamente por cuadriláteros GEN4U a superficies parametrizadas en R3. Al igual que el algoritmo original, la ... -
Generalized parametric solutions in Stokes flow
Díez, Pedro; Zlotnik, Sergio; Huerta, Antonio (2017-11-01)
Article
Accés obertDesign optimization and uncertainty quantification, among other applications of industrial interest, require fast or multiple queries of some parametric model. The Proper Generalized Decomposition (PGD) provides a separable ... -
Goal oriented error estimation for the element free Galerkin method
Vidal Seguí, Yolanda; Huerta, Antonio (2007-06)
Article
Accés obertA novel approach for implicit residual-type error estimation in meshfree methods is presented. This allows to compute upper and lower bounds of the error in energy norm with the ultimate goal of obtaining bounds for outputs ...