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On the effects of nodal distributions for imposition of essential boundary conditions in the MLPG meshfree method.

Augarde, C. E. and Deeks, A. J. (2005) 'On the effects of nodal distributions for imposition of essential boundary conditions in the MLPG meshfree method.', Communications in numerical methods in engineering., 21 (7). pp. 389-395.

Abstract

Imposition of essential boundary conditions in meshfree methods is made difficult because the shape functions used do not possess the delta property. Various procedures have been proposed including penalty, Lagrange multipliers and collocation. It is shown in this paper that the success of a procedure depends on the arrangement of the nodal points. Certain methods of imposing boundary conditions are shown not to work for unstructured nodal arrangements. Much previous work has been demonstrated using structured grids thus hiding these drawbacks.

Item Type:Article
Keywords:Meshfree method, Boundary conditions, Penalty method.
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1002/cnm.755
Record Created:24 Sep 2008
Last Modified:08 Apr 2009 16:21

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