The Application of Reverberation in Method of Mechanoelectrical Transformations for Estimation of Stress-Strain State in Solid Dielectrical Matter

Detalles Bibliográficos
Parent link:	Materials Science Forum: Scientific Journal Vol. 970 : Modern Problems in Materials Processing, Manufacturing, Testing and Quality Assurance II.— 2019.— [P. 47-54]
Autor principal:	Khorsov P. N. Petr Nikolaevich
Autor Corporativo:	Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников
Otros Autores:	Laas R. A. Roman Aleksandrovich, Surzhikov A. P. Anatoly Petrovich
Sumario:	Title screen The paper assesses the possibility of using the reverberation phenomenon to control the imperfections and the stress-strain state of solid dielectric materials by the method of mechanoelectrical transformations. The main advantage of reverberation is the repeated intersections of the excitation zones of inhomogeneities by acoustic waves, that is displayed in response parameters. The reverberation makes it possible to accumulate distortions of wave fronts. A comparative analysis of the responses from the sample under condition of uniaxial compression under different loads was performed. Differential analysis for the deterministic time component of the response in the interval (0-0.3) ms, and a statistical analysis of the differences for the pseudo-random component in the interval (0.8-1.8) ms were performed. For the statistical analysis, the distribution of the pulse flow is selected. The response was calculated according to the mathematical model under the conditions of a change in the speed of sound, which simulates a change in the sample inhomogeneity under load. The calculation showed a qualitative similarity with changes in responses in a real experiment. According to the obtained results, it was concluded that it is possible to use the deterministic and pseudo-random components of the responses in the reverberation condition to control the change in defectiveness and the degree of heterogeneity under the action of the mechanical load on the sample. Режим доступа: по договору с организацией-держателем ресурса
Lenguaje:	inglés
Publicado:	2019
Materias:	электронный ресурс труды учёных ТПУ Acoustic Wave Defectoscopy Mechanoelectrical ransformations Reverberation Stress-Strain State акустические волны дефектоскопия механоэлектрические преобразования реверберация напряженно-деформированные состояния диэлектрические среды
Acceso en línea:	https://doi.org/10.4028/www.scientific.net/MSF.970.47
Formato:	Electrónico Capítulo de libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660914