References of "Nadal, Enrique"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailLocally equilibrated stress recovery for goal oriented error estimation in the extended finite element method
Bordas, Stéphane UL; gonzález-estrada, octavio andrés; ródenas, Juan josé et al

in Computers & Structures (2015)

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 ... [more ▼]

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 qual- ity, for example, by using the extended finite element method (XFEM), we can solve expensive problems which could result intractable otherwise. Here, we present an error estimation technique for enriched finite element approxi- mations that is based on an equilibrated recovery technique, which considers the stress intensity factor as the quantity of interest. The locally equilibrated superconvergent patch recovery is used to obtain enhanced stress fields for the primal and dual problems defined to evaluate the error estimate. [less ▲]

Detailed reference viewed: 125 (9 UL)
Full Text
Peer Reviewed
See detailExplicit expressions of dual loads for accurate error estimation and bounding in goal oriented adaptivity
Ródenas, Juan José; Nadal, Enrique; González-Estrada, Octavio Andrés et al

in Moitinho de Almeida, J P; Díez, P; Tiago, C (Eds.) et al Adaptive Modeling and Simulation. Proceedings of VI ADMOS 2013 (2013)

Detailed reference viewed: 218 (3 UL)
Full Text
Peer Reviewed
See detailEquilibrated patch recovery for accurate evaluation of upper error bounds in quantities of interest
González-Estrada, Octavio Andrés; Ródenas, J J; Nadal, Enrique et al

in Audry, D; Díez, P; Tie, B (Eds.) et al Adaptive Modeling and Simulation. Proceedings of V ADMOS 2011 (2011)

Detailed reference viewed: 59 (0 UL)