Strength and moisture resistance of fiberglass plastic VPS-53/T-25 at the initial stage of natural and accelerated aging

Startsev V.O., Startsev O.V., Pavlov M.R., Nechaev A.A.
UDC
678.8
DOI
10.18577/2307-6046-2025-0-3-89-100
Article PDF (Russian) (904.32 KB)
How to cite
Startsev V.O., Startsev O.V., Pavlov M.R., Nechaev A.A. Strength and moisture resistance of fiberglass plastic VPS-53/T-25 at the initial stage of natural and accelerated aging // Proceedings of VIAM. 2025. No. 3. DOI: 10.18577/2307-6046-2025-0-3-89-100. URL: https://test.viam.ru/en/journal/2025/3/8
Keywords
fiberglass, climatic aging, full-scale exposure, accelerated testing, strength, moisture diffusion coefficient, sorption, desorption
Abstract

Comparative tests of the resistance of fiberglass VPS-53/T-25 to aging were conducted during exposure in natural conditions of moderately warm and moderate climate for 3 and 6 months and to simulating effects in two modes of laboratory accelerated tests. It was found that during 6 months of exposure the strength of fiberglass decreased by 7 %, while the moisture diffusion coefficient increased by 60 and 120 % accordingly. The prospects of using Fick and Langmuir models for comparing the effects of composite materials aging during tests in natural and laboratory conditions were shown.

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