Reference : Locally equilibrated stress recovery for goal oriented error estimation in the extend...
Scientific journals : Article
Engineering, computing & technology : Multidisciplinary, general & others
Computational Sciences
http://hdl.handle.net/10993/19509
Locally equilibrated stress recovery for goal oriented error estimation in the extended finite element method
English
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
gonzález-estrada, octavio andrés []
ródenas, Juan josé []
Nadal, Enrique []
Kerfriden, Pierre []
Fuenmayor, F. J. []
2015
Computers & Structures
Pergamon Press - An Imprint of Elsevier Science
Yes (verified by ORBilu)
International
0045-7949
Oxford
United Kingdom
[en] goal oriented ; error estimation ; mesh adaptivity
[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 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.
Researchers ; Professionals ; General public ; Others
http://hdl.handle.net/10993/19509

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