期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 42, 期 21, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/42/21/214014
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资金
- ANR [ANR-05-JCJC-0088]
- Triangle de la Physique [2007-46]
- Agence Nationale de la Recherche (ANR) [ANR-05-JCJC-0088] Funding Source: Agence Nationale de la Recherche (ANR)
Stress enhancement in the vicinity of brittle cracks makes the macro-scale failure properties extremely sensitive to the micro-scale material disorder. Therefore, (i) fracturing systems often display a jerky dynamics, so- called crackling noise, with seemingly random sudden energy release spanning over a broad range of scales, reminiscent of earthquakes; (ii) fracture surfaces exhibit roughness at scales much larger than that of material microstructure. Here, I provide a critical review of experiments and simulations performed in this context, highlighting the existence of universal scaling features, independent of both the material and the loading conditions, reminiscent of critical phenomena. I finally discuss recent stochastic descriptions of crack growth in brittle disordered media that seem to capture qualitatively-and sometimes quantitatively-these scaling features.
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