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JOURNALS // Prikladnaya Mekhanika i Tekhnicheskaya Fizika // Archive

Prikl. Mekh. Tekh. Fiz., 2024 Volume 65, Issue 1, Pages 150–169 (Mi pmtf4391)

Analysis of the dynamic behavior, buckling, and aeroelasticity of a thin composite plate with the effect of general and local geometric defects

H. Moosazadeha, M. M. Mohammadib

a Tarbiat Modares University
b Malek Ashtar University of Technology

Abstract: Nonlinear vibrations, buckling, and aeroelasticity of a thin nonlinear orthotropic composite plate have been analyzed. The types of symmetric and antisymmetric sheet layering, the number of layers, the fiber angle ranging from 0 to 90$^{\circ}$, the effect of constant and variable thermal loads, the temperature dependence of the specific heat coefficient and the elastic modulus of the material, along with the local geometrical defects have been investigated. Using Galerkin's weighted residual theory, partial differential equations have been transformed into nonlinear ordinary differential equations, which are solved by the Runge–Kutta method.

Keywords: thin composite plate, flutter, piston theory, thermal gradient, geometrical defects, post-buckling.

UDC: 539.3; 533.6

Received: 14.02.2023
Revised: 14.02.2023
Accepted: 29.05.2023

DOI: 10.15372/PMTF202315264


 English version:
Journal of Applied Mechanics and Technical Physics, 2024, 65:1, 134–151

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© Steklov Math. Inst. of RAS, 2024