Оценка структурно-чувствительного коэффициента в туфах с помощью акустической эмиссии

Панасьян, Л.Л.; Фролова, Ю.В.; Шварц, К.

Авторы: Панасьян Л.Л., Фролова Ю.В., Шварц К.
Сборник: Сборник трудов ХХ сессии Российского Акустического Общества, М.: ГЕОС
Год издания: 2008
Место издания: ГЕОС Москва
Первая страница: 294
Последняя страница: 298
Аннотация: An attempt to estimate structural strength of rocks from the positions of thermo-kinetic theory of strength of materials is undertaken, using acoustic emission as a method. The characteristic of the studied rocks on physicomechanical parameters and background activity on АE is preliminary given. Experiments are spent at various static and dynamically loadings. Stresses and the AE total count per time unit are measured during the tests. The assumption is come out that kinetic of AE is depend of particular films in tuffs. It is used thermokinetic approach to destruction of rocks which considers destruction as a process of change of local stress as a result of change of energy condition of material interconnections. In this research based on positions of the theory of a heredity and proceeding from the curve of durability constructed by results of acoustoemission measurements, parameters of curves AE=f (σ) are defined; the structurally-sensitive coefficient on an example of studied tuffs is also calculated. Results of a definition of КСП are demonstrated for artificial made samples and different types of rocks.
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Оценка структурно-чувствительного коэффициента в туфах с помощью акустической эмиссиистатья

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