The influence of climatic factors on residual stresses in nanomodified cyanate ester-based CFRP

Startsev V.O., Nikolaev E.V., Vardanyan A.M., Nechaev A.A.
UDC
539.24:620.1
DOI
10.18577/2307-6046-2021-0-8-104-112
Article PDF (Russian) (846.75 KB)
How to cite
Startsev V.O., Nikolaev E.V., Vardanyan A.M., Nechaev A.A. The influence of climatic factors on residual stresses in nanomodified cyanate ester-based CFRP // Proceedings of VIAM. 2021. No. 8. DOI: 10.18577/2307-6046-2021-0-8-104-112. URL: https://test.viam.ru/en/journal/2021/8/12
Keywords
CFRP, nanoscale additives, residual stresses, climatic testing, resign post-cure, mechanical properties, thermal expansion.
Abstract

The residual stresses in carbon fiber reinforced plastic (CFRP), based on VTkU-2.200 carbon fiber and VSC-14 cyanate ester resin, modified by nanoscale additives (astralen) were studied. Natural exposure was performed in a moderately cold climate. The influence of nanoadditives on mechanical and physical CFRP’s properties after 9 months of climatic testing was studied using the following properties: three-point bending strength, compression strength, coefficient of linear thermal expansion, glass transition temperature and residual stresses parameters. The increase of residual stresses after climatic testing was revealed.

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