Abstract
The results of the work performed at NRC «Kurchatov Institute» – VIAM in research on aspects of the influence of operational factors (high humidity and temperature) on the physic-mechanical properties of glass fiber composite VPS-31. The main physical and mechanical properties of samples obtained from the spar of the helicopter's main blade are presented (including the glass transition temperature, strength and modulus of elasticity in tension, elongation at break at various test temperatures in the initial state and after exposure to moisture). We studied the fragments of the spar, successfully passed thermocyclic tests («day/night»). The results of the research confirmed the possibility of exploitation of glass fiber composite VPS-31in a humid tropical climate.
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