Scaling of Crack Surfaces and Implications on Fracture Mechanics

Details Scaling of Crack Surfaces and Implications on Fracture Mechanics Scaling of Crack Surfaces and Implications on Fracture Mechanics

2000-07-06

arxiv.org/abs/cond-mat/0007100v1

Physics

Condensed Matter

Materials Science

Revtex, 4 pages, 3 figures, accepted for publication in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.85.1678

The scaling laws describing the roughness development of crack surfaces are incorporated into the Griffith criterion. We show that, in the case of a Family-Vicsek scaling, the energy balance leads to a purely elastic brittle behavior. On the contrary, it appears that an anomalous scaling reflects a R-curve behavior associated to a size effect of the critical resistance to crack growth in agreement with the fracture process of heterogeneous brittle materials exhibiting a microcracking damage.

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