Interconnections between the Polarization Current and the Electromagnetic Signal of Rock Samples under Loading

Yavorovich, L. V.; Беспалько, А. А.; Fedotov, P.I.; Popelyaev, A I

doi:10.4028/www.scientific.net/amr.1085.471

Cited by 1 publication

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is natural to expect change of EME intensity depending from composition and a structure, and also from character of deformation in such complex heterogeneous systems what rocks are. In our previous work [18], there was established interconnection between polarization current and EMS amplitude in all stages of changing SSS of the rock samples differing by electric properties. In the present work, we continue research of rock samples by methods and samples described in [18].…”

Section: Statement Of a Problemmentioning

confidence: 89%

“…In our previous work [18], there was established interconnection between polarization current and EMS amplitude in all stages of changing SSS of the rock samples differing by electric properties. In the present work, we continue research of rock samples by methods and samples described in [18]. Thus, an objective of this research is revealing regularity in EME characteristics and application of algorithm worked out in [19] for the analysis of fracture processes in rock samples in vitro.…”

Section: Statement Of a Problemmentioning

confidence: 89%

See 1 more Smart Citation

Analyzing Deformation and Fracture of Dielectrics by Integral Characteristics of their Electromagnetic Emission

Yavorovich

Беспалько

Fedotov

et al. 2016

KEM

View full text Add to dashboard Cite

Revealing of fracture harbingers of dielectric materials, that are under mechanical stress, is an important practical and scientific problem. Local stresses, produced by mechanical impact, can exceed the local strength, and a stress-strain state changes. As the result of such impacts, microcracks appear and lead to fracture. During change of stress-strain state, mechanoelectric transformations occur, that generate electromagnetic emission. So we aimed to observe regularities in electromagnetic emission characteristics. Rock samples, collected from Tashtagol ore-mine of Kemerovo region of Russia, were used as dielectric materials for the research. For analysis of rock samples deformation and fracture, integral characteristics of time series of electromagnetic emission were used. Observed, that low-strength samples accumulate and relax elastic energy stepwise unlike to high-strength samples, that accumulate energy linearizely. Differences in dispersion characteristics of samples differing with strength are observed. The research showed usability of suggested algorithms.

show abstract

Section: Statement Of a Problemmentioning

confidence: 89%

Section: Statement Of a Problemmentioning

confidence: 89%