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Scaling and universality in rock fracture

Davidsen, Jörn; Stanchits, Sergei; Dresen, Georg. 2007 Scaling and universality in rock fracture. Physical Review Letters, 98 (12), 125502. 4, pp. 10.1103/PhysRevLett.98.125502

Abstract
We present a detailed statistical analysis of acoustic emission time series from laboratory rock fracture obtained from different experiments on different materials including acoustic emission controlled triaxial fracture and punch-through tests. In all considered cases, the waiting time distribution can be described by a unique scaling function indicating its universality. This scaling function is even indistinguishable from that for earthquakes suggesting its general validity for fracture processes independent of time, space, and magnitude scales.
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