Phase transition in a spring-block model of surface fracture

Details Phase transition in a spring-block model of surface fracture Phase transition in a spring-block model of surface fracture

1996-08-23

arxiv.org/abs/cond-mat/9608102v1

Euro. Phys. Lett. 38, 589 (1997)

Physics

Condensed Matter

RevTeX, 4 pages, 4 Postscript figures included using epsfig

Scientific paper

10.1209/epl/i1997-00288-6

A simple and robust spring-block model obeying threshold dynamics is introduced to study surface fracture of an overlayer subject to stress induced by adhesion to a substrate. We find a novel phase transition in the crack morphology and fragment-size statistics when the strain and the substrate coupling are varied. Across the transition, the cracks display in succession short-range, power-law and long-range correlations. The study of stress release prior to cracking yields useful information on the cracking process.

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