Reference : Analysis using higher-order XFEM: implicit representation of geometrical features fro...
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
Computational Sciences
http://hdl.handle.net/10993/17993
Analysis using higher-order XFEM: implicit representation of geometrical features from a given parametric representation
English
Moumnassi, Mohammed []
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Figueredo, R []
Sansen, P []
2014
Mechanics & Industry
Cambridge University Press
15
05
443-448
Yes (verified by ORBilu)
International
2257-7777
2257-7750
Les Ulis
France
[en] Higher-order XFEM; curved boundary; parametric functions; implicit boundary representation; graded sub-mesh (GSM) ; Higher-order XFEM; curved boundary; parametric functions; implicit boundary representation; graded sub-mesh (GSM) ; Higher-order XFEM; curved boundary; parametric functions; implicit boundary representation; graded sub-mesh (GSM)
[en] We present a promising approach to reduce the difficulties associated with meshing complex curved domain boundaries for higher-order finite elements. In this work, higher-order XFEM analyses for strong discontinuity in the case of linear elasticity problems are presented. Curved implicit boundaries are approximated inside an unstructured coarse mesh by using parametric information extracted from the parametric representation (the most common in Computer Aided Design CAD). This approximation provides local graded sub-mesh (GSM) inside boundary elements (i.e. an element split by the curved boundary) which will be used for integration purpose. Sample geometries and numerical experiments illustrate the accuracy and robustness of the proposed approach.
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/17993
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