Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/446EE5CD-3FC8-4D42-BD06-56EB3AE960DE | - |
| Language | en | - |
| Title | Pressure stimulated currents in rocks and their correlation with mechanical properties | en |
| Creator | Stavrakas I. | en |
| Creator | Triantis D. | en |
| Creator | Agioutantis Zacharias | en |
| Creator | Αγιουταντης Ζαχαριας | el |
| Creator | Mavrigiannakis Stelios | en |
| Creator | Μαυριγιαννακης Στελιος | el |
| Creator | Saltas V. | en |
| Creator | Vallianatos F. | en |
| Creator | Clarke M. | en |
| Content Summary | The spontaneous electrification of marble samples was studied while they were subjected to uniaxial stress. The Pressure Stimulated Current (PSC) technique was applied to measure the charge released from compressed Dionysos marble samples, while they were subjected to cyclic loading. The experimental results demonstrate that, in the linear elastic region of the sample, no PSC is recorded, while beyond the stress limit (s>0.60), observable variations appear, which increase considerably in the vicinity of sample failure, reaching a maximum value just before the failure. The emitted current is reduced on each loading cycle and it has a reciprocal dependence to the normalized Young modulus. The MCD model, applied out of the vicinity of sample failure explains successfully the above findings. The existence of a "memory-like" behavior of the sample, could justify the weakness or absence of electrical earthquake precursors, during an aftershock sequence. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-11-16 | - |
| Date of Publication | 2004 | - |
| Subject | Electromagnetic energy | en |
| Subject | Electromagnetic radiation | en |
| Subject | electromagnetic waves | en |
| Subject | electromagnetic energy | en |
| Subject | electromagnetic radiation | en |
| Bibliographic Citation | I. Stavrakas, D. Triantis, Z. Agioutantis, S. Maurigiannakis, V. Saltas, F. Vallianatos, and M. Clarke, "Pressure stimulated currents in rocks and their correlation with mechanical properties", Natural Hazards and Earth Systems Sciences, vol. 4, no. 4, pp. 563-567, 2004. | en |
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