Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2004-07-15
Physics
Condensed Matter
Statistical Mechanics
to be published in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.93.095505
We study experimentally the slow growth of a single crack in a fibrous material and observe stepwise growth dynamics. We model the material as a lattice where the crack is pinned by elastic traps and grows due to thermally activated stress fluctuations. In agreement with experimental data we find that the distribution of step sizes follows sub-critical point statistics with a power law (exponent 3/2) and a stress-dependent exponential cut-off diverging at the critical rupture threshold.
Ciliberto Sergio
Santucci Stéphane
Vanel Loïc
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