Combined effect of the climatic factors and impact damage on strength of the polymer composite plates

The paper presents results of studying properties of the B180 carbon fiber after exposure to the humid climate conditions. The study was conducted together with the Joint Vietnam-Russia Tropical Science and Technology Research Center. The ultimate strength and elastic moduli values under tension and compression of the material before and after exposure to the climatic factors were determined. A decrease in the ultimate strength under compression and tension, and an increase in the elasticity modulus were found. The effect of humid climate on the strength of plates with the impact damage under compression was estimated by comparing critical loads with plates having the same damage, but without exposure to the climatic factors. It was found that critical loads after a long stay in areas with the humid climate were decreasing.
EDN: RPIIFE, https://elibrary/rpiife

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