Strength Tests of a CFRP Spar Using Methods of Acoustic Emission and Tensometry
- Авторы: Stepanova L.N.1, Petrova E.S.1, Chernova V.V.2
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Учреждения:
- Chaplygin Siberian Aeronautical Research Institute
- Siberian Transport University
- Выпуск: Том 54, № 4 (2018)
- Страницы: 243-248
- Раздел: Acoustic Methods
- URL: https://journal-vniispk.ru/1061-8309/article/view/181610
- DOI: https://doi.org/10.1134/S1061830918040101
- ID: 181610
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Аннотация
Results of the strength tests of an aircraft wing spar made of Toray T1000 carbon fiber-reinforced plastic are presented. Construction failure zones have been inspected by the methods of acoustic emission (AE) and tensometry. Loading-induced changes in the stress-strain state (SSS) of wing-spar material have been analyzed. The coordinates of AE signal sources that correspond to the separation of the upper spar cap from the spar web have been determined. Algorithms for AE-data processing using wavelet transforms are considered. Connections have been established between changes in stresses emerging in CFRP material, AE signal structure, and the occurrence and propagation of spar fracture.
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Об авторах
L. Stepanova
Chaplygin Siberian Aeronautical Research Institute
Автор, ответственный за переписку.
Email: aergroup@ngs.ru
Россия, Novosibirsk, 630051
E. Petrova
Chaplygin Siberian Aeronautical Research Institute
Email: aergroup@ngs.ru
Россия, Novosibirsk, 630051
V. Chernova
Siberian Transport University
Email: aergroup@ngs.ru
Россия, Novosibirsk, 630049
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