2008
DOI: 10.5194/adgeo-14-25-2008
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Electromagnetic emission from magnetite plate cracking under seismic processes

Abstract: Abstract. Electromagnetic emission generated by cracking of a magnetite plate is theoretically investigated. The non-stationary mechanical stresses, produced by moving the tip of a crack and a wave of mechanical unloading in the plate are considered as the sources of the radiation. It is demonstrated that the radiation is produced by the appearance of a non-stationary magnetic moment in the plate.

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Cited by 6 publications
(14 citation statements)
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“…The occurrence of this electromagnetic emission (EME) has been shown for almost any material and for various kinds of failure mechanisms [1][2][3][4][5][6][7][8][9]. The detection and analysis of EME can help to understand the complex processes of crack formation.…”
Section: Introductionmentioning
confidence: 99%
“…The occurrence of this electromagnetic emission (EME) has been shown for almost any material and for various kinds of failure mechanisms [1][2][3][4][5][6][7][8][9]. The detection and analysis of EME can help to understand the complex processes of crack formation.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, it is possible to ignore the boundary conditions for the EM field and mechanical strains, considering the medium as unbounded, although it is assumed that a piezoeffective inclusion of size L is placed inside the plate ( Fig. 1) (Gernets et al 2004;Koshevaya et al 2008). Then the equations of motion of the medium and the equations of the EM field, written in the crystallographic frame of the piezocrystal in SI units, take the following form:…”
Section: Model and Basic Equationsmentioning
confidence: 99%
“…1 and 2 are dimensionless, while the others have proper SI units. Equations 1 and 2 have been solved by using a Fourier transform of the spatial coordinates with infinite limits and a Laplace transform with respect to time t (Gernets et al 2004;Koshevaya et al 2008).…”
Section: Model and Basic Equationsmentioning
confidence: 99%
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