Author(s)

M.B. Chopra & G.F. Dargush

Abstract

Application of the BEM to problems of elastoplasticity and nonlinear soil consolidation M.B. Chopra* & G.F. Dargush& " Department of Civil and Environmental Engineering, University of Central Florida, Or/a Wo, FI 322 Jg, CASA & Department of Civil Engineering, State University of New York at Buffalo, Buffalo, ABSTRACT Nonlinear material effects are incorporated into a linear BEM formulation for coupled poroelastic behavior using an initial stress approach. In the limiting case, when the coupled nature and the quasistatic behavior are ignored, the standard elastoplastic formulation is recovered. Some applications of geomechanics are studied to establish its utility for practical analysis. These include problems of quasistatic triaxial testing and drained collapse of circular footing on a half space. INTRODUCTION The multi-phase nature of soil gives rise to a diffusive process called consolidation when subjected to loads. Biot [1] generalized Terzaghi theory of effectiv

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