Research Article
Aug 1980
Strain and Displacement Discontinuities in Soil
Authors: Guy T. Houlsby and C. Peter WrothAuthor Affiliations
Publication: Journal of the Engineering Mechanics Division
Volume 106, Issue 4
Abstract
A classification is made of the various possible types of kinematic discontinuity. The commonly accepted condition that a velocity discontinuity should coincide with a direction of zero extension is shown to be unnecessary, although this condition may apply if certain constitutive relations are chosen. The hypothesis of a critical state at very large shear strains results in the absence of dilation on a velocity discontinuity. A statement is made of the general compatibility requirements for strain and velocity discontinuities and of the equilibrium requirement for a stress discontinuity. The restrictions imposed by constitutive relations on strain and velocity discontinuities are reviewed for a cohesive material and frictional materials with associated and nonassociated flow.
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Published In
Journal of the Engineering Mechanics Division
Volume 106 • Issue 4 • August 1980
Pages: 753 - 771
Copyright
© 1980 American Society of Civil Engineers.
History
Published in print: Aug 1980
Published online: Feb 3, 2021
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Authors
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Guy T. Houlsby
Research Student, Engrg. Dept., Cambridge Univ., Cambridge, United Kingdom
C. Peter Wroth
Prof. of Engrg. Sci., Univ. of Oxford, Oxford, United Kingdom
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