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August 14, 2023
Published
August 14, 2023
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Abstract

In this paper the free vibration behaviours of thick laminated composite non-circular cylindrical shells are investigated using higher-order theory. The formulation accounts for the variation of the in-plane and transverse displacements through the thickness, abrupt discontinuity in slope of the in-plane displacements at the interfaces, and includes in-plane, rotary inertia terms, and also the inertia contributions due to the coupling between the different order displacement terms. The strain-displacement relations are accurately accounted for in the formulation without neglecting/approximating the (I +z/R) terms. The solutions are obtained employing finite element procedure. Detailed study is made to highlight the influences of length and thickness ratios, eccentricity parameter, ply-angles and number of layers on the free vibration characteristics of non-circular shells.

Keywords

Laminated Shell, Angle-Ply, Cross-Ply, Non-Circular, Higher-Order, Finite Element

Article Details

How to Cite
Patel, B., Ganapathi, M., Sambandam, C., & Giri, S. (2023). Free Vibration Behaviours of Thick Laminated Non-Circular Cylindrical Shells. Journal of Aerospace Sciences and Technologies, 55(2), 118–127. https://doi.org/10.61653/joast.v55i2.2003.866
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