Design-theoretical and experimental determination of physical and mechanical properties of the composite materials for the light aircraft fuselage multilayer load-bearing elements
Authors: Tun Lin Htet, Prosuntsov P.V.
Published in issue: #10(154)/2024
DOI: 10.18698/2308-6033-2024-10-2392
Category: Aviation and Rocket-Space Engineering | Chapter: Strength and Thermal Conditions of Aircraft
The paper considers methods for determining physical and mechanical properties of the composite materials used in design of the light aircraft fuselage structure. It analyzes physical and mechanical properties of these materials using the computational-theoretical approach based on multiscale simulation. To construct a representative volume element of the composite, tomographic studies were conducted making it possible to identify geometric dimensions of the reinforcing fabric threads in the composite. Composite material was numerically simulated at the meso- and macro-levels using the ANSYS Material Designer and MSC.Digimat software packages. The results obtained were compared. To validate the computation results, the samples were experimentally subjected to tensile testing. It was found that discrepancy between the computation and experimental study results was not exceeding 15%, which indicated adequacy of the material model used.
EDN HMAFWE
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