Constitutive Theory of Interface Behavior in Quasi‐Brittle Materials
Publication: Journal of Engineering Mechanics
Volume 120, Issue 12
Abstract
A relatively simple and general constitutive model of interface behavior in quasi‐brittle materials is presented. It is assumed that both hardening and softening behaviors are governed by the same Mohr‐Coulomb‐type fracture criterion. The hardening‐softening level is specified by a single parameter , so that the coupling effect of normal and tangential directions are naturally reflected. The whole fracture criterion is established mainly on two basic tests: pure tension and pure shear on interface specimens. A simplified nonassociated flow rule is employed. Simple examples have shown that the model is capable of predicting a variety of interface behaviors in quasi‐brittle materials.
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Copyright © 1994 American Society of Civil Engineers.
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Received: Dec 20, 1993
Published online: Dec 1, 1994
Published in print: Dec 1994
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