Physics – Condensed Matter – Materials Science
Scientific paper
2005-10-14
Journal of Statistical Physics 125, 1029 (2006)
Physics
Condensed Matter
Materials Science
A review paper submitted to J. Stat. Phys
Scientific paper
10.1007/s10955-006-9045-7
Experiments on fracture surface morphologies offer increasing amounts of data that can be analyzed using methods of statistical physics. One finds scaling exponents associated with correlation and structure functions, indicating a rich phenomenology of anomalous scaling. We argue that traditional models of fracture fail to reproduce this rich phenomenology and new ideas and concepts are called for. We present some recent models that introduce the effects of deviations from homogeneous linear elasticity theory on the morphology of fracture surfaces, succeeding to reproduce the multiscaling phenomenology at least in 1+1 dimensions. For surfaces in 2+1 dimensions we introduce novel methods of analysis based on projecting the data on the irreducible representations of the SO(2) symmetry group. It appears that this approach organizes effectively the rich scaling properties. We end up with the proposition of new experiments in which the rotational symmetry is not broken, such that the scaling properties should be particularly simple.
Bouchbinder Eran
Procaccia Itamar
Sela Shani
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