Article (Scientific journals)
Finite element analysis on implicitly defined domains: An accurate representation based on arbitrary parametric surfaces
Moumnassi, Mohammed; Belouettar, Salim; Béchet, Eric et al.
2011In Computer Methods in Applied Mechanics and Engineering, 200 (5-8), p. 774-796
Peer Reviewed verified by ORBi
 

Files


Full Text
moumnassi.pdf
Publisher postprint (6.54 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Implicit boundary representation; Level set method; Curved boundary and sharp edges
Abstract :
[en] In this paper, we present some novel results and ideas for robust and accurate implicit representation of geometric surfaces in finite element analysis. The novel contributions of this paper are threefold: (1) describe and validate a method to represent arbitrary parametric surfaces implicitly; (2) represent arbitrary solids implicitly, including sharp features using level sets and boolean operations; (3) impose arbitrary Dirichlet and Neumann boundary conditions on the resulting implicitly defined boundaries. The methods proposed do not require local refinement of the finite element mesh in regions of high curvature, ensure the independence of the domain’s volume on the mesh, do not rely on boundary regularization, and are well suited to methods based on fixed grids such as the extended finite element method (XFEM). Numerical examples are presented to demonstrate the robustness and effectiveness of the proposed approach and show that it is possible to achieve optimal convergence rates using a fully implicit representation of object boundaries. This approach is one step in the desired direction of tying numerical simulations to computer aided design (CAD), similarly to the isogeometric analysis paradigm.
Disciplines :
Mechanical engineering
Author, co-author :
Moumnassi, Mohammed
Belouettar, Salim;  CRP Henri Tudor, Luxembourg
Béchet, Eric ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Conception géométrique assistée par ordinateur
Bordas, Stéphane;  Cardiff University
Quoirin, Didier;  Goodyear Luxembourg
Potier-Ferry, Michel;  Université de Lorraine
Language :
English
Title :
Finite element analysis on implicitly defined domains: An accurate representation based on arbitrary parametric surfaces
Publication date :
January 2011
Journal title :
Computer Methods in Applied Mechanics and Engineering
ISSN :
0045-7825
eISSN :
1879-2138
Publisher :
Elsevier Science, Lausanne, Switzerland
Volume :
200
Issue :
5-8
Pages :
774-796
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 May 2014

Statistics


Number of views
73 (5 by ULiège)
Number of downloads
1 (1 by ULiège)

Scopus citations®
 
79
Scopus citations®
without self-citations
67
OpenCitations
 
79

Bibliography


Similar publications



Contact ORBi