WIT Press


A Direct Formulation For Three-dimensional Elastoplastic Boundary Elements

Price

Free (open access)

Paper DOI

10.2495/BE970171

Volume

19

Pages

11

Published

1997

Size

900 kb

Author(s)

A.P. Cisilino, M.H. Aliabadi and J.L. Otegui

Abstract

In this work an efficient BEM formulation for three-dimensional elastoplasticity is presented. Particular attention is paid to accurate evaluation of the Cauchy Principal Value volume integrals. Nine-noded quadrilateral elements and 27-noded cubic (brick) cells are used for the surface and volume discretization. An explicit initial strain formulation is used to satisfy the non-linearity. The accuracy of the proposed method is demonstrated by solving a number of benchmark problems. Introduction Boundary Element Method (BEM) is now well established for the solution of linear problems and some nonlinear problems in engineering}!]. The

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