Changes in the properties of aviation PCM after 6 years of exposure in typical climatic zones of Russia

Part 1. Moisture transfer and deformability
Kornienko G.V., Dvirnaya E.V., Startsev O.V., Krotov A.S.
UDC
539.3:620.17
DOI
10.18577/2307-6046-2026-0-5-75-93
Article PDF (Russian) (1.71 MB)
How to cite
Kornienko G.V., Dvirnaya E.V., Startsev O.V., Krotov A.S. Changes in the properties of aviation PCM after 6 years of exposure in typical climatic zones of Russia. Part 1. Moisture transfer and deformability // Proceedings of VIAM. 2026. No. 5. DOI: 10.18577/2307-6046-2026-0-5-75-93. URL: https://test.viam.ru/en/journal/2026/5/6
Keywords
fiber reinforced polymers, outdoor weathering, moisture diffusion, plasticization, shear modulus, Fick's law of diffusion, Langmuir adsorption model
Abstract

Studies of changes in the diffusion characteristics of glass and carbon fiber reinforced polymers in their initial state and after exposure for 6 years in 5 climatic zones of the Russian Federation have been conducted. The value of the coefficient of determination of the approximation by the Fick and Langmuir models for the weighing results obtained at the stages of drying and humidification is equal to 1.00. Using the non-destructive plate twist method during conditioning, diagrams of shear modulus change were obtained and then approximated using the similar models. The modeling results allowed to distinguish the influence of climatic zones on the properties of the materials.

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