| Títol: | Imposing essential boundary conditions in mesh-free methods |
| Autor: | Fernandez Mendez, Sonia
Huerta, Antonio |
| Altres autors/autores: | Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III |
| Matèries: | Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
Boundary element methods
Essential boundary conditions
Mesh-free methods
Lagrange multipliers
Nitsche's method
Coupling with finite elements
Elements de contorn, Mètode dels |
| Tipus de document: | Article |
| Descripció: | Imposing essential boundary conditions is a key issue in mesh-free methods. The mesh-free interpolation does not verify the Kronecker delta property and, therefore, the imposition of prescribed values is not as straightforward as for the finite element method. The aim of this paper is to present a general overview on the existing techniques to enforce essential boundary conditions in Galerkin based mesh-free methods. Special attention is paid to the mesh-free coupling with finite elements for the imposition of prescribed values and to methods based on a modification of the Galerkin weak form. Particular examples are used to analyze and compare their performance in different situations. |
| Altres identificadors i accés: | Fernandez, S.; Huerta, A. Imposing essential boundary conditions in mesh-free methods. "Computer methods in applied mechanics and engineering", Març 2004, vol. 193, núm. 12-14, p. 1257-1275.
0045-7825
http://hdl.handle.net/2117/8503
10.1016/j.cma.2003.12.019 |
| Disponible al dipòsit: | E-prints UPC
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