Dynamic Electrical-Mechanical Energy Coupling in Electrolyte-Mineral Systems |
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Authors: | Santamarina J Carlos Fratta Dante O |
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Institution: | (1) Department of Civil and Environmental Engineering, Georgia Tech, 305 Fest Drive, GA, 30332-0363, U.S.A;(2) Louisiana State University, Baton Rouge, LA, 70803, U.S.A |
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Abstract: | Electrical-mechanical and mechanical-electrical coupling phenomena have been observed in geo-materials. Underlying internal phenomena are not always clear. In this paper, we identify potential microscale processes on the bases of previously published research; fundamental physical principles and analytical models are included. Second, we notice important inconsistencies between theoretically predicted values or high-frequency laboratory data with respect to low-frequency field observations. To explore these differences, we conduct a laboratory experimental study that simulates field conditions, placing emphasis on low frequency coupling, that is, less than 10 kHz. Both, mechanical-electrical and electrical-mechanical effects are observed. Finally, hypotheses are presented in an attempt to explain observed differences. |
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Keywords: | energy coupling electrical-mechanical coupling mechanical-electrical coupling soils particulate media electrolyte diffuse double layer electromagnetic waves mechanical waves electro-seismic effects seismo-electric effects laboratory measurements electrode polarization |
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