Avalanche Statistics of Interface Crack Propagation in Fiber Bundle Model: Characterization of Cohesive Crack
Publication: Journal of Engineering Mechanics
Volume 127, Issue 7
Abstract
This paper considers a model of crack propagation taking place at the interface between a rigid support and an elastic plate. The interface is modeled using a fiber bundle model (i.e., describing a damage behavior using a discrete set of elastic brittle elements having a random strength). This paper studies the fluctuations of the force required to propagate the crack along the interface. The statistics of avalanches, defined as a series of elements that are broken simultaneously under a load that decreases with the crack advance, are studied numerically and analytically. Local fiber breakage kinetics is related to a correlation length, which sets the size of a fracture process zone.
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Published In
Journal of Engineering Mechanics
Volume 127 • Issue 7 • July 2001
Pages: 646 - 652
History
Received: Mar 15, 2001
Published online: Jul 1, 2001
Published in print: Jul 2001
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