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Title: Investigation and quantification of damage in geomaterials with the technique of dielectric spectroscopy
Authors: Μαυριγιαννάκης, Στέλιος
Μητριτσάκης, Νίκος
Αγιουτάντης, Ζαχαρίας
Αναστασιάδης, Κίμων
Σταύρακας, Ηλίας
Contributors: Τριάντης, Δήμος
Item type: Conference publication
Conference Item Type: Poster
Keywords: Τεχνική της διηλεκτρικής φασματοσκοπίας;Υλικά και πειραματικές τεχνικές;Διερεύνηση;Υπολογισμός της ζημίας;Technique of dielectric spectroscopy;Materials and experimental techniques;Investigation;Quantification of damage
Subjects: Technology
Electrical engineering
Ηλεκτρολογία Μηχανολογία
Issue Date: 28-Apr-2015
Date of availability: 28-Apr-2015
Abstract: The technique of Dielectric Spectroscopy (DS) or Impedance Spectroscopy (IS) was applied on marbles in order to investigate the influence of previously applied uniaxial compressional stress and three point bending up to fracture. Parameters to be measured were the ac conductivity (σac), the real (ε΄) and the imaginary (ε΄΄) parts of complex relative permittivity when an ac electric field at frequencies 10kHz and 100kHz was applied upon dry and saturated samples which were successively subjected to higher levels of mechanical stress. The experimental results indicate that there are systematic declinations in the values of the above parameters between the state of stress and the state of relaxation. These declinations become more intense at higher stress values. It is concluded that the technique of dielectric spectroscopy constitutes a promising method of investigation and quantification of the damage that has occurred within the bulk of geomaterials.
Language: English
Citation: Maurigiannakis, S., Mitritsakis, N., Agioutantis, Z., Anastasiadis, C., Triantis, D. e.t. (2006) Investigation and quantification of damage in geomaterials with the technique of dielectric spectroscopy. In 9th European conference on non-destructive testing. Berlin, 25-29 September 2006. pp.1-7.
Conference: 9th European conference on non-destructive testing
Access scheme: Publicly accessible
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
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