USING EXPERIMENTAL DATA ON ACOUSTIC EMISSION TO STUDY CHANGES IN THE CHARACTERISTICS OF DISK-LIKE CRACKS DURING FRACTURE
V. T. Belikov, D. G. Ryvkin
Bulashevich Institute of Geophysics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
Keywords: акустическая эмиссия, трещина, функция распределения, удельная площадь внутренней поверхности, acoustic emission, crack, distribution function, specific area of inner surface
Abstract
A model of disk-like cracks based on amplitude-frequency spectra of acoustic emission, detected in the fracture of a concrete sample, is used to restore their size distribution function, as well as corresponding distributions of porosity and specific area of internal surface of the material. Changes in these characteristics of a solid in a time interval between the instances of detection of the spectra are studied.
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