Subcritical statistics in rupture of fibrous materials: Experiments and model

被引：75

作者：

Santucci, S ^{[1
]}

Vanel, L ^{[1
]}

Ciliberto, S ^{[1
]}

机构：

[1] Ecole Normale Super Lyon, Phys Lab, CNRS, UMR 5672, F-69364 Lyon 07, France

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.93.095505

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 subcritical point statistics with a power law (exponent 3/2) and a stress-dependent exponential cutoff diverging at the critical rupture threshold.

引用

页码：095505 / 1

页数：4

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