Staging of a localized deformation during tension of specimens of a carbon-carbon composite material with holes of different diameters according to acoustic-emission, surface-deformation mapping, and strain-gauging data

S. V. Panin, M. V. Burkov, A. V. Byakov, P. S. Lyubutin, S. A. Khizhnyak

Результат исследования: Материалы для журналаСтатья

6 Цитирования (Scopus)

Аннотация

The deformation and fracture of specimens of a carbon-carbon composite material with different dimensions of a stress concentrator in the form of a central hole with diameters of 7, 10, and 13 mm were studied using a developed combined method. The results of a numerical analysis of experimental data are presented in the form of diagrams (dependences) of the shear-deformation intensity and the acoustic-emission activity as functions of the loading time. The factors that cause similarity and differences of the investigation results are discussed and interpreted. It is proposed that the obtained data be used for the nondestructive testing of composite materials via the selection of characteristic stages of the deformation development and the moment that precedes fracturing.

Язык оригиналаАнглийский
Страницы (с... по...)598-608
Количество страниц11
ЖурналRussian Journal of Nondestructive Testing
Том48
Номер выпуска10
DOI
Статус публикацииОпубликовано - окт 2012

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ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Condensed Matter Physics
  • Materials Science(all)

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