Anomalous Scaling of Fracture Surfaces

Details Anomalous Scaling of Fracture Surfaces Anomalous Scaling of Fracture Surfaces

1998-02-25

arxiv.org/abs/cond-mat/9802265v1

PRE vol.57, p.6405 (1998)

Physics

Condensed Matter

Statistical Mechanics

4 pages, LateX, 4 figures, uses epsf. Accepted for publication in PRE

Scientific paper

10.1103/PhysRevE.57.6405

We argue that fracture surfaces may exhibit anomalous dynamic scaling properties akin to what occurs in some models of kinetic roughening. We determine the complete scaling behavior of the local fluctuations of a brittle fracture in a granite block from experimental data. We obtain a global roughness exponent $\chi = 1.2$ which differs from the local one, $\chi_{loc} = 0.79$. Implications on fracture physics are discussed.

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