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Title: Wavelet analysis on pressure stimulated currents emitted by marble samples
Authors: Κυριαζής, Παναγιώτης
Αναστασιάδης, Κίμων
Τριάντης, Δήμος Α.
Βαλλιανάτος, Φίλιππος
Item type: Journal article
Keywords: Weak electric signals;Macroscopic signal processing;Geomaterials;Ασθενείς ηλεκτρικά σήματα;Μακροσκοπική επεξεργασία σήματος;Γεωυλικά
Subjects: Technology
Issue Date: 5-Apr-2015
Date of availability: 5-Apr-2015
Publisher: Copernicus Publications
Abstract: This paper presents a wavelet based method of analysis of experimentally recorded weak electric signals from marble specimens which have undergone successive abrupt step loadings. Experimental results verify the existence of “memory effects” in rocks, as far as the current emission is concerned, akin to the “Kaiser effect” in acoustic emissions, which accompany rock fracturing. Macroscopic signal processing shows similarities and differences between the currents emitted during successive loading and wavelet analysis can reveal significant differences between the currents of each loading cycle that contain valuable information for the micro and macro cracks in the specimen as well as information for the remaining strength of the material. Wavelets make possible the time localization of the energy of the electric signal emitted by stressed specimens and can serve as method to differentiate between compressed and uncompressed samples, or to determine the deformation level of specimens.
Language: English
Citation: KYRIAZIS, P., ANASTASIADIS, C., TRIANTIS, D.A. & VALLIANATOS, F. (2006). Wavelet analysis on pressure stimulated currents emitted by marble samples. Natural Hazards and Earth System Sciences. [Online] 6. p.889-894. Available from:
Journal: Natural Hazards and Earth System Sciences
Type of Journal: With a review process (peer review)
Access scheme: Publicly accessible
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
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