Calculation and application in aerospace structures of flat ribbed panels made of polymer composite materials

Article

Published: 23.05.2023

Published in issue: #5(137)/2023

DOI: 10.18698/2308-6033-2023-5-2272

Category: Aviation and Rocket-Space Engineering | Chapter: Design, construction and production of aircraft

The work is aimed at developing and testing of the simplified calculation method with optimization using the equal strength criterion in layers, and analyzing the prospects of introduction of the ribbed reinforced panels made of polymer composite materials in the aerospace structures. The paper considers the main design cases of loading the ribbed panels at the initial stage. Calculation expressions are used in the constraints of the designed structures. The method was approbated on the example of calculation of a ribbed panel made of the KMU-7L type carbon fiber. The results obtained show satisfying accuracy in determining stiffness and strength of ribbed composite panels, taking into account the binder, being sufficient for the engineering calculations.

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