Effects of Process Zones on Crack Interactions
Publication: Journal of Engineering Mechanics
Volume 120, Issue 12
Abstract
The problem of interaction among cracks, including the effects of process zones, is studied. The Dugdale‐type cohesive‐zone model is extended to mixed‐modes of loading and is then used to evaluate the size of process zones. The interaction is considered by applying uniform normal and shear tractions on each crack surface caused by the remaining cracks. The magnitude of these interaction tractions relative to far‐field stresses reflects the intensity of the interaction. The effect of process zones on the magnitude of interaction tractions is studied by comparing them with the corresponding elastic values. It is shown that process zones generally enhance the interaction, but effective properties are not altered significantly.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 120 • Issue 12 • December 1994
Pages: 2678 - 2693
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Nov 23, 1993
Published online: Dec 1, 1994
Published in print: Dec 1994
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