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Browsing by Author "González Estrada, Octavio Andrés"

Now showing items 1-10 of 10

A recovery-type error estimator for the extended finite element method based on singular+smooth stress field splitting

Ródenas, J.J.; González-Estrada, O.A.; Taráncón, J.E.; Fuenmayor, F.J. (John Wiley & Sons, 2008)

[EN] A new stress recovery procedure that provides accurate estimations of the discretization error for linear elastic fracture mechanic problems analyzed with the extended finite element method (XFEM) is presented. The ...
Accurate recovery-based error upper bounds for the extended finite element framework

Ródenas, J.J.; Gonzalez-Estrada, O.A.; Díez, P.; Fuenmayor Fernández, Francisco-Javier (Elsevier, 2010)

[EN] This paper introduces a recovery-type error estimator yielding upper bounds of the error in energy norm for linear elastic fracture mechanics problems solved using the extended finite element method (XFEM) The paper ...
Efficient recovery-based error estimation for the smoothed finite element method for smooth and singular linear elasticity

González Estrada, Octavio Andrés; Natarajan, S.; J.J. Ródenas; Nguyen-Xuan, H.; Bordas, S.P.A. (Springer Verlag, 2013-07)

[EN] An error control technique aimed to assess the quality of smoothed finite element approximations is presented in this paper. Finite element techniques based on strain smoothing appeared in 2007 were shown to provide ...
Enhanced error estimator based on a nearly equilibrated moving least squares recovery technique for FEM and XFEM

Ródenas, J.J.; González Estrada, Octavio Andrés; Fuenmayor Fernández, Francisco Javier; Chinesta, F. (Springer Verlag, 2012)

In this paper a new technique aimed to obtain accurate estimates of the error in energy norm using a moving least squares (MLS) recovery-based procedure is presented. In the techniques based on the superconvergent patch ...
Estimación y acotación del error de discretización en el modelado de grietas mediante el método extendido de los elementos finitos

González Estrada, Octavio Andrés (Universitat Politècnica de València, 2010-02-19)

El Método de los Elementos Finitos (MEF) se ha afianzado durante las últimas décadas como una de las técnicas numéricas más utilizadas para resolver una gran variedad de problemas en diferentes áreas de la ingeniería, como ...
Estimador de error de tipo recovery para XFEM basado en descomposición del campo de tensiones en partes suave y singular

González Estrada, Octavio Andrés (Universitat Politècnica de València, 2011-10-20)

Se ha desarrollado un nuevo procedimiento que permite obtener estimaciones precisas del error de discretización para problemas de la Mecánica de la Fractura Elástico-Lineal (MFEL) analizados mediante el Método de los ...
Kinematic analysis and dimensional optimization of a 2R2T parallel manipulator

Araujo-Gómez, Pedro; Díaz-Rodríguez, Miguel; Mata Amela, Vicente; González Estrada, Octavio A. (Springer-Verlag, 2019-10)

[EN] The need of a device providing two-translational and two-rotational movements led us to design a 3UPS-1RPU parallel manipulator. The manipulator consisted of a mobile platform connected to a base through one central ...
Locally equilibrated stress recovery for goal oriented error estimation in the extended finite element method

González Estrada, Octavio Andrés; Ródenas, J.J.; Bordas, S.P.A.; Nadal, E.; Kerfriden, P.; Fuenmayor Fernández, Francisco Javier (Elsevier, 2015-05)

[EN] Goal oriented error estimation and adaptive procedures are essential for the accurate and efficient evaluation of finite element numerical simulations that involve complex domains. By locally improving the approximation ...
Mesh adaptivity driven by goal-oriented locally equilibrated superconvergent patch recovery

González Estrada, Octavio Andrés; Nadal Soriano, Enrique; Ródenas, J.J.; Kerfriden, P.; Bordas, S.P.A.; Fuenmayor Fernández, Francisco Javier (Springer Verlag (Germany), 2014-05)

[EN] Goal-oriented error estimates (GOEE) have become popular tools to quantify and control the local error in quantities of interest (QoI), which are often more pertinent than local errors in energy for design purposes ...
On the role of enrichment and statical admissibility of recovered fields in a-posteriori error estimation for enriched finite element methods

González Estrada, Octavio Andrés; Ródenas, J.J.; Bordas, Stéphane Pierre Alain; Duflot, Marc; Kerfriden, Pierre; Giner Maravilla, Eugenio (Emerald, 2012)

Purpose The purpose of this paper is to assess the effect of the statical admissibility of the recovered solution and the ability of the recovered solution to represent the singular solution; also the accuracy, local and ...