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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
- Source :
- Russian Journal of Nondestructive Testing. 48:598-608
- Publication Year :
- 2012
- Publisher :
- Pleiades Publishing Ltd, 2012.
-
Abstract
- 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.
- Subjects :
- Structural material
Materials science
Tension (physics)
business.industry
Mechanical Engineering
Reinforced carbon–carbon
Deformation (meteorology)
Condensed Matter Physics
Stress (mechanics)
Acoustic emission
Mechanics of Materials
Nondestructive testing
Fracture (geology)
General Materials Science
Composite material
business
Subjects
Details
- ISSN :
- 16083385 and 10618309
- Volume :
- 48
- Database :
- OpenAIRE
- Journal :
- Russian Journal of Nondestructive Testing
- Accession number :
- edsair.doi...........c89d40aa19a150de49f763b39add3115
- Full Text :
- https://doi.org/10.1134/s1061830912100087