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Analytical solution for buckling analysis of composite cylinders with honeycomb core layer

Eipakchi, Hamidreza and Nasrekani, Farid M. (2021) Analytical solution for buckling analysis of composite cylinders with honeycomb core layer. American Institute of Aeronautics and Astronautics (AIAA) Journal, NA . NA. ISSN 0001-1452

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Abstract

In this study, an analytical solution is presented to determine the buckling load of composite cylindrical shells with an auxetic honeycomb layer under a uniform axial load. The composite shell consists of three layers in which the core layer is made of the auxetic honeycomb structure with a negative Poisson’s ratio and the internal and external layers have been made of elastic and isotropic materials. The first-order shear deformation theory has been used as the displacement field. The equilibrium equations are determined by considering the von Kármán theory, and they are coupled nonlinear differential equations that are solved by employing the perturbation technique. The buckling load has been determined analytically by solving the stability equations, which are a system of coupled differential equations with variable coefficients. By conducting a parametric study, the effects of the honeycomb structure and the aspect ratios on the buckling load have been investigated. It is seen that by changing the geometrical parameters of the honeycomb structure, the Poisson ratio can be adjusted and the mechanical behavior of the composite shell has been modified. The results are compared with some other references and the finite element analysis.

Item Type: Journal Article
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics
Depositing User: Farid Nasrekani
Date Deposited: 24 Jun 2021 13:41
Last Modified: 24 Jun 2021 13:41
URI: http://repository.usp.ac.fj/id/eprint/12810
UNSPECIFIED

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