WIT Press


Application Of BEM To Non-conforming Elastoplastic Contact Problems

Price

Free (open access)

Paper DOI

10.2495/CON950371

Volume

7

Pages

9

Published

1995

Size

767 kb

Author(s)

D. Martin & M.H. Aliabadi

Abstract

- In this paper, a boundary element formulation for non-conforming contact problems, with the consideration of elastoplasticity, is presented. In order to solve the contact problem, a direct constraint technique is employed. Friction between the bodies is taken into account, and the materials may have different elastoplastic properties. An initial strain BEM formulation is used to study the elastoplastic problem. The material is assumed to obey the Von Mises yield cri- terion with its associated flow rule. An incremental loading technique is proposed, which enables to follow accurately the loading history of the problem. An example of a cylinder on a flat foundation is presented. Introduction A contact problem is of the non-conforming type, if the surfaces of the bodies coming into contact do not ha

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