Investigation of local internal stresses under conditions of uniaxial compression of a quartz single crystal
Damaskinskaya E.E. 1, Hilarov V.L. 1, Drozdov S.O. 2
1Ioffe Institute, St. Petersburg, Russia
2Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia

Based on the analysis of the time intervals between acoustic emission signals obtained in the process of uniaxial compression of a cylindrical sample of a quartz single crystal, local stresses were estimated. It is shown that a decrease in the ability of a material to monotonic stress relaxation with time can serve as a signal for the imminent breakdown of the material. Keywords: acoustic emission, kinetic concept of strength, local mechanical stresses.
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