Acoustic-Emission Testing of Failure in Samples of CFRP Exposed to Static and Heat Loads
- Authors: Stepanova L.N.1, Chernova V.V.2, Petrova E.S.1, Ramazanov I.S.1
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Affiliations:
- Siberian Aeronautical Research Institute
- Siberian Transport University
- Issue: Vol 54, No 11 (2018)
- Pages: 748-756
- Section: Acoustic Methods
- URL: https://journals.rcsi.science/1061-8309/article/view/181832
- DOI: https://doi.org/10.1134/S1061830918110098
- ID: 181832
Cite item
Abstract
The results of testing samples made of T700 carbon fiber reinforced plastic with a stress concentrator in the form of a hole 14 mm in diameter are considered. Some of the samples were heated to a temperature of +100°C, followed by exposure to a static tensile load, with the remaining samples statically loaded at a temperature of +20°C. In the process of loading, information was recorded using the method of acoustic emission. At first, the samples were loaded statically up to 50 kN, which was 50% of the average breaking load. Then the load was increased in increments ΔP = 10 kN until sample failure. It was observed that the simultaneous exposure of samples to static and heat loads decreased the load capacity of the samples.
About the authors
L. N. Stepanova
Siberian Aeronautical Research Institute
Author for correspondence.
Email: aergroup@ngs.ru
Russian Federation, Novosibirsk, 630051
V. V. Chernova
Siberian Transport University
Email: aergroup@ngs.ru
Russian Federation, Novosibirsk, 630049
E. S. Petrova
Siberian Aeronautical Research Institute
Email: aergroup@ngs.ru
Russian Federation, Novosibirsk, 630051
I. S. Ramazanov
Siberian Aeronautical Research Institute
Email: aergroup@ngs.ru
Russian Federation, Novosibirsk, 630051