A non-extensive view of the pressure stimulated current relaxation during repeated abrupt uniaxial load-unload in rock samples

dc.contributor.author	Βαλλιανάτος, Φίλιππος	el
dc.contributor.author	Τριάντης, Δήμος Α.	el
dc.date.accessioned	2015-05-15T20:46:40Z
dc.date.available	2015-05-15T20:46:40Z
dc.date.issued	2015-05-15
dc.identifier.uri	http://hdl.handle.net/11400/10481
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://iopscience.iop.org/	en
dc.subject	Non-extensive statistical mechanics
dc.subject	q-parameter
dc.subject	Non-additive entropy
dc.subject	Relaxation
dc.subject	Xαλάρωση
dc.subject	Μη-εκτεταμένη στατιστική μηχανική
dc.subject	q-παράμετρος
dc.subject	Μη προσθετικά εντροπίας
dc.title	A non-extensive view of the pressure stimulated current relaxation during repeated abrupt uniaxial load-unload in rock samples	en
heal.type	journalArticle
heal.classification	Technology
heal.classification	Electrical engineering
heal.classification	Τεχνολογία
heal.classification	Ηλεκτρολογία Μηχανολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://zbw.eu/stw/descriptor/18426-4
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Ηλεκτρολογία Μηχανολογία
heal.identifier.secondary	DOI: 10.1209/0295-5075/104/68002
heal.language	en
heal.access	campus
heal.publicationDate	2013-12-12
heal.bibliographicCitation	VALLIANATOS, F. & TRIANTIS, D.A. (2013). A non-extensive view of the pressure stimulated current relaxation during repeated abrupt uniaxial load-unload in rock samples. EPL. [Online] 104 (6). 68002. Available from: http://iopscience.iop.org/	en
heal.abstract	Laboratory experiments have confirmed that the application of uniaxial stress on rock samples is accompanied by the production of weak electric currents, named Pressure Stimulated Currents (PSCs). In the present work the PSC emissions in marble and amphibolite (from the German Continental Deep drilling) samples are studied in the frame of non-extensive statistical mechanics, after having applied sequential loading-unloading cycles. It was ascertained that by increasing the sequential order of the loading-unloading cycle, the emitted PSC exhibits q-exponential behavior with a non-additive entropy parameter q which decreased in each applied uniaxial load-unload cycle. The behavior of the Tsallis q-parameter leads to the conclusion that fracturing is a subadditive process with hierarchically constrained dynamics. Furthermore, assuming an assembly of relaxed subdomains created due to microfracture, a non-extensive behavior of the observed macroscopically PSC relaxation is discussed in the frame of a superstatistical approach.	en
heal.publisher	European Physical Society	en
heal.publisher	IOP Publishing	en
heal.publisher	EDP Sciences	en
heal.publisher	Società Italiana di Fisica	it
heal.publisher	EPL Association	en
heal.journalName	EPL	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true