Boundary-Element Analysis Of Stresses In An Axisymmetrical Soil Mass Undergoing Consolidation

    Authors

    M. B. Chopra;G. F. Dargush

    Comments

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    Abbreviated Journal Title

    Int. J. Numer. Anal. Methods Geomech.

    Keywords

    INTEGRAL-EQUATION METHOD; LINEAR POROUS-ELASTICITY; FLUID; Engineering, Geological; Materials Science, Multidisciplinary; Mechanics

    Abstract

    A time domain boundary element method (BEM) for evaluating stresses in an axisymmetric soil mass undergoing consolidation has been developed. Previous BEM work on axisymmetric poroelasticity for boundary displacements and pore pressures is extended to permit the computation of stresses at both boundary and interior points. The stress formulation preserves the surface-only discretization. The boundary displacement integral equation is progressively differentiated to obtain the related stress and strain integral equations. Explicit expressions for the steady-state axisymmetric fundamental solutions are derived in this process. The transient components of the integrands are obtained directly from the transformation of the three-dimensional kernels into a cylindrical system. Numerical implementation of these integral equations is carried out within a general purpose BEM computer code and several illustrative examples are presented to validate the method.

    Journal Title

    International Journal for Numerical and Analytical Methods in Geomechanics

    Volume

    19

    Issue/Number

    3

    Publication Date

    1-1-1995

    Document Type

    Article

    Language

    English

    First Page

    195

    Last Page

    218

    WOS Identifier

    WOS:A1995QN17000003

    ISSN

    0363-9061

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