Abstract
A unified approach is presented for the analysis of the finite static expansion of a spherical or cylindrical cavity in an indefinite elastic-perfectly plastic medium. Mohr-Coulomb yield criterion is adopted with an arbitrary degree of non-associativity of the volumetric dilatational component of the plastic flow. This idealization makes the present analysis particularly appropriate for rock-like materials. The general solution obtained requires a numerical integration over the plastic zone. Some numerical examples, referring to both the spherical and the cylindrical cavity emphasize the determining role of the elastic deformations in the plastic region.
Published Version
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