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Title:

A symmetric method for weakly imposing Dirichlet boundary conditions in embedded finite element meshes

Document type:
Zeitschriftenaufsatz
Author(s):
Baiges, J.; Codina, R.; Henke, F.; Shahmiri, S.; Wall, W.A.
Abstract:
In this paper we propose a way to weakly prescribe Dirichlet boundary conditions in embedded finite element meshes. The key feature of the method is that the algorithmic parameter of the formulation which allows to ensure stability is independent of the numerical approximation, is relatively small and can be fixed a priori. Moreover, the formulation is symmetric for symmetric problems. An additional element-discontinuous stress field is used to enforce the boundary conditions in the Poisson prob...     »
Keywords:
finite element methods; boundary conditions; fixed meshes; Nitsche’s method
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
International Journal for Numerical Methods in Engineering
Year:
2012
Journal volume:
90
Journal issue:
5
Pages contribution:
636-658
Covered by:
Web of Science
Reviewed:
ja
Language:
en
Fulltext / DOI:
doi:10.1002/nme.3339
Status:
Verlagsversion / published
Semester:
SS 12
Format:
Text
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