Avalanches and force drops in displacement-driven compression of porous glasses
arXiv:1607.08866 · doi:10.1103/PhysRevE.94.033005
Abstract
Similarities between force-driven compression experiments of porous materials and earthquakes have been recently proposed. In this manuscript, we measure the acoustic emission during displacement-driven compression of a porous glass. The energy of acoustic-emission events shows that the failure process exhibits avalanche scale-invariance and therefore follows the Gutenberg-Richter law. The resulting exponents do not exhibit significant differences with respect the force-driven case. Furthermore, the force exhibits an avalanche-type behaviour for which the force drops are power-law distributed and correlated with the acoustic emission events.
arXiv comment18 pages, 8 figures
References in corpus (7)
- Statistical similarity between the compression of a porous material and earthquakes
- Avalanches in wood compression
- Rupture cascades in a discrete element model of a porous sedimentary rock
- Driving-induced crossover: from classical criticality to self-organized criticality
- Approach to failure in porous granular materials under compression
- Analogies between the cracking noise of ethanol-dampened charcoal and earthquakes
- Acoustic Emission from Breaking a Bamboo Chopstick