Analyzing deformation and fracture of dielectrics by integral characteristics of their electromagnetic emission

Lyudmila Yavorovich, Anatoly Bespalko, Pavel Fedotov, Aleksey Popelyaev

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

2 Цитирования (Scopus)

Аннотация

Revealing of fracture harbingers of dielectric materials, that are under mechanical stress, is an important practical and scientific problem. Local stresses, produced by mechanical impact, can exceed the local strength, and a stress-strain state changes. As the result of such impacts, microcracks appear and lead to fracture. During change of stress-strain state, mechanoelectric transformations occur, that generate electromagnetic emission. So we aimed to observe regularities in electromagnetic emission characteristics. Rock samples, collected from Tashtagol ore-mine of Kemerovo region of Russia, were used as dielectric materials for the research. For analysis of rock samples deformation and fracture, integral characteristics of time series of electromagnetic emission were used. Observed, that low-strength samples accumulate and relax elastic energy stepwise unlike to high-strength samples, that accumulate energy linearizely. Differences in dispersion characteristics of samples differing with strength are observed. The research showed usability of suggested algorithms.

Язык оригиналаАнглийский
Название основной публикацииMultifunctional Materials
Подзаголовок основной публикацииDevelopment and Application
РедакторыIrina Kurzina, Anna Godymchuk
ИздательTrans Tech Publications Ltd
Страницы36-43
Число страниц8
ISBN (печатное издание)9783038357292
DOI
СостояниеОпубликовано - 2016
Событие12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015 - Tomsk, Российская Федерация
Продолжительность: 21 апр 201524 апр 2015

Серия публикаций

НазваниеKey Engineering Materials
Том683
ISSN (печатное издание)1013-9826
ISSN (электронное издание)1662-9795

Конференция

Конференция12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015
СтранаРоссийская Федерация
ГородTomsk
Период21.4.1524.4.15

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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