Títol:
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Statistical Similarity between the Compression of a Porous Material and Earthquakes
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Autor/a:
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Baró i Urbea, Jordi; Corral, Álvaro; Illa i Tortós, Xavier; Planes Vila, Antoni; Salje, Ekhard K. H.; Schranz, Wilfried; Soto-Parra, Daniel E.; Vives i Santa-Eulàlia, Eduard
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Altres autors:
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Universitat de Barcelona |
Abstract:
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It has long been stated that there are profound analogies between fracture experiments and earthquakes; however, few works attempt a complete characterization of the parallels between these so separate phenomena. We study the acoustic emission events produced during the compression of Vycor (SiO2). The Gutenberg-Richter law, the modified Omori's law, and the law of aftershock productivity hold for a minimum of 5 decades, are independent of the compression rate, and keep stationary for all the duration of the experiments. The waiting-time distribution fulfills a unified scaling law with a power-law exponent close to 2.45 for long times, which is explained in terms of the temporal variations of the activity rate. |
Matèries:
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-Terratrèmols -Materials porosos -Earthquakes -Porous materials |
Drets:
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(c) American Physical Society, 2013
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Tipus de document:
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Article Article - Versió publicada |
Publicat per:
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American Physical Society
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