WIT Press


Non-conforming BEM Discretisation In Elastoplastic Contact Problems

Price

Free (open access)

Paper DOI

10.2495/CON970081

Volume

14

Pages

9

Published

1997

Size

673 kb

Author(s)

D. Martin and M.H. Aliabadi

Abstract

In this paper, frictionless elastoplastic contact problems are solved by BEM, using non conforming discretisation. The contact conditions are directly enforced by relating tractions and displacements at every node of the contact zone with a point on the opposite surface. An initial strain BEM formulation is used to study the elastoplastic problem. The material is assumed to obey the Von Mises yield criterion with its associated flow rule. A numerical application is presented to demonstrate the efficiency of the proposed method. Introduction The BEM is particularly apt to handling contact problems, as contact is inherent to the boundaries of the bodies involved. The application of BEM to a range of elastic, frictional problems is now well established, following early research by

Keywords