Interpretation of Observations of Acoustic Emission in a Collapsing Solid
V. T. Belikov
Institute of Geophysics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
Keywords: destruction, acoustic emission, longitudinal wave, radiating cavity, monopole
Abstract
Equations are obtained that describe the process of propagation of elastic waves in a collapsing solid. It is shown that the solution of the equation for the velocity potential of acoustic emission longitudinal waves can be represented as a superposition of the fields of an ensemble of radiating cavities - monopoles. The parameters of the ensemble of monopoles are selected in such a way that the structural characteristics of a medium with cavities differ slightly from those of a solid body.
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