WIT Press


A Boundary Element Approach For Contact Problems Involving Large Displacements

Price

Free (open access)

Paper DOI

10.2495/BT960201

Volume

15

Pages

10

Published

1996

Size

923 kb

Author(s)

A. Lorenzana, J.A. Garrido & I. Prieto

Abstract

A new algorithm is presented for the boundary element analysis of the two- dimensional contact problem between elastic solids involving large diplace- ments. The contact constraints are not applied node-on-node but node-on- element, using the element shape functions for distributing the geometry, dis- placements and tractions on each element in the contact zone. In this way, the discretizations performed along the two surfaces in contact do not have to be the same. The solution procedure is based in the updated lagrangian approach and the resulting method is incremental. At least one increment of load must be done for each node changing its boundary condition, the geometry being up- dated after each increment.

Keywords