Browsing by Author "Verdugo Rojano, Francesc"
Now showing items 1-13 of 13
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An algorithm for mesh refinement and un-refinement in fast transient dynamics
(2013-08)
Article
Open AccessA procedure to locally refine and un-refine an unstructured computational grid of four-node quadrilaterals (in 2D) or of eight-node hexahedra (in 3D) is presented. The chosen refinement strategy generates only elements of ... -
Computable bounds of functional outputs in linear visco-elastodynamics
(2012)
Article
Open AccessThis work presents a new technique yielding computable bounds of quantities of interest in the framework of linear visco-elastodynamics. A novel expression for the error representation is introduced, alternative to the ... -
Computable bounds of linear functional outputs in linear visco- elastodynamics
(2012)
Conference report
Open AccessThis work presents a new technique yielding computable bounds of quantities of interest in the framework of linear visco-elastodynamics. A novel expression for the error representation is introduced, alternative to the ... -
Error assessment and adaptivity for structural transient dynamics
(Universitat Politècnica de Catalunya, 2013-10-15)
Doctoral thesis
Open AccessThe finite element method is a valuable tool for simulating complex physical phenomena. However, any finite element based simulation has an intrinsic amount of error with respect to the exact solution of the selected ... -
Error assessment in structural transient dynamics
(2014-03-01)
Article
Open AccessThis paper presents in a unified framework the most representative state-of-the-art techniques on a posteriori error assessment for second order hyperbolic problems, i.e., structural transient dynamics. For the sake of ... -
Geometrical discretisations for unfitted finite elements on explicit boundary representations
(2022-07-01)
Article
Restricted access - publisher's policyUnfitted (also known as embedded or immersed) finite element approximations of partial differential equations are very attractive because they have much lower geometrical requirements than standard body-fitted formulations. ... -
Goal-oriented space-time adaptivity for transient dynamics using a modal description of the adjoint solution
(2014-08-01)
Article
Open AccessThis article presents a space-time adaptive strategy for transient elastodynamics. The method aims at computing an optimal space-time discretization such that the computed solution has an error in the quantity of interest ... -
Mixed aggregated finite element methods for the unfitted discretization of the Stokes problem
(2018-12-18)
Article
Open AccessIn this work, we consider unfitted finite element methods for the numerical approximation of the Stokes problem. It is well-known that these kinds of methods lead to arbitrarily ill-conditioned systems and poorly approximated ... -
Modal-based goal-oriented error assessment and adaptivity for structural dynamics
(2014)
Conference report
Open Access -
Modal-based goal-oriented error assessment for timeline-dependent quantities in transient dynamics
(John Wiley & Sons, 2013-08-24)
Article
Restricted access - publisher's policyThis article presents a new approach to assess the error in specific quantities of interest in the framework of linear elastodynamics. In particular, a new type of quantities of interest (referred as timeline-dependent ... -
Modelització numèrica de la propagació d'onatge en zones costaneres mitjançant el mètode Galerkin discontinu
(Universitat Politècnica de Catalunya, 2009-07-03)
Minor thesis
Open AccessL'objectiu d'aquesta tesina és desenvolupar una eina eficient per a la modelització de la propagació d'onatge en zones costaneres. Aquest és un problema complex per diversos aspectes: grans requeriments de càlcul -necessaris ... -
Robust and scalable domain decomposition solvers for unfitted finite element methods
(2018-12)
Article
Open AccessUnfitted finite element methods, e.g., extended finite element techniques or the so-called finite cell method, have a great potential for large scale simulations, since they avoid the generation of body-fitted meshes and ... -
The aggregated unfitted finite element method for elliptic problems
(2018-07)
Article
Open AccessUnfitted finite element techniques are valuable tools in different applications where the generation of body-fitted meshes is difficult. However, these techniques are prone to severe ill conditioning problems that obstruct ...
