Research Article
May 1982
Minimax Finite Element Method
Authors: Il-Bahng Park and Walter D. Pilkey, M.ASCEAuthor Affiliations
Publication: Journal of the Structural Division
Volume 108, Issue 5
Abstract
The minimax method is applied to boundary value problems of structural mechanics. This is a weighted residual method in which the absolute value of a residual is minimized. It is similar to collocation-based finite elements. Computational implementation is achieved using linear programming. Since inequality constraints are acceptable to linear programming, the minimax method can bm used to solve problems formulated using inequality relationships. For example, the minimax finite element method can perform limit analyses or can be applied to such contact problems as offset supports. The proposed approach is formulated in some detail. It is then applied to some elasticity stress analysis problems and to the limit analysis of a beam. The method appears to be relatively easy to set up and gives satisfactory results.
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Published In
Journal of the Structural Division
Volume 108 • Issue 5 • May 1982
Pages: 998 - 1011
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: May 1982
Published online: Feb 1, 2021
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Affiliations
Il-Bahng Park
Sr. Engr., Nuclear Tech. Div., Westinghouse Electric Corp., Pittsburgh, Pa.; formerly, Research Assoc., Civ. Engrg. Dept., Univ. of Virginia, Charlottesville, Va. 22901
Walter D. Pilkey, M.ASCE
Prof., Applied Mech. Div., Univ. of Virginia, Charlottesville, Va. 22901
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.