title: Scaling in temporal occurrence of quasi-rigid-body vibration pulses due to macrofractures.
abstract: We subjected the time series of quasi-rigid-body vibration pulses (elastic emissions) from laboratory fracture carried out by a piezoelectric accelerometer on concrete and rock specimens under uniaxial compression to statistical analysis. In both cases, we find that the waiting-time distribution can be described by a scaling law extending over several orders of magnitude. This law is indistinguishable from a universal scaling law recently proposed for the waiting-time distributions of acoustic emissions in heterogeneous materials and earthquakes, suggesting its general validity for fracture processes independent of modes and magnitude scales.
authors.affiliation: Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Turin, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Niccolini
authors.forename: A
authors.initials: A
authors.lastname: Schiavi
authors.forename: P
authors.initials: P
authors.lastname: Tarizzo
authors.forename: A
authors.initials: A
authors.lastname: Carpinteri
authors.forename: G
authors.initials: G
authors.lastname: Lacidogna
authors.forename: A
authors.initials: A
authors.lastname: Manuello