2009, English, Article edition: Intermittency and roughening in the failure of brittle heterogeneous materials Bonamy, Daniel

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Physical Description
  • text
Published
  • HAL - CCSD
  • 2009
Language
  • English

Edition details

Title
  • Intermittency and roughening in the failure of brittle heterogeneous materials
Author
  • Bonamy, Daniel
Published
  • HAL - CCSD
  • 2009
Physical Description
  • text
Subjects
Notes
  • 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 micro-structure. 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.
  • HAL:hal-00405226, version 1
  • HAL:http:/​/​hal.archives-ouvertes.fr/​hal-00405226/​en/​
Language
  • English
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