Brittle fracture down to femto-Joules - and below

Autor:	Astrom, J., Di Stefano, P., Proebst, F., Stodolsky, L., Timonen, J.
Rok vydání:	2007
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	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. Comment: REVTeX, new figure added, minor modifications to text
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0708.4315 Zobrazit plný text záznamu View this record from Arxiv