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Brittle fracture down to femto-Joules - and below

Abstract : We analyze large sets of energy-release data created by stress-induced brittle fracture in a pure sapphire crystal at close to zero temperature where stochastic fluctuations are minimal. The waiting-time distribution follows that observed for fracture in rock and for earthquakes. Despite strong time correlations of the events and the presence of large-event precursors, simple prediction algorithms only succeed in a very weak probabilistic sense. We also discuss prospects for further cryogenic experiments reaching close to single-bond sensitivity and able to investigate the existence of a transition-stress regime.
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Contributor : Philippe Di Stefano <>
Submitted on : Friday, September 21, 2007 - 3:17:12 PM
Last modification on : Monday, June 15, 2020 - 12:08:19 PM
Long-term archiving on: : Tuesday, September 21, 2010 - 1:20:09 PM


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  • HAL Id : in2p3-00169096, version 2
  • ARXIV : 0708.4315



J. Astrom, P. Di Stefano, F. Proebst, L. Stodolsky, J. Timonen. Brittle fracture down to femto-Joules - and below. 2007. ⟨in2p3-00169096v2⟩



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