Abstract
In this analysis, a comparative study for natural frequencies of two-layered cylindrical shells was presented with one layer composed of functionally graded material and the other layer of isotropic material. Love’s thin shell theory was exploited for the strain-displacement and curvature-displacement relationships. For governing frequency equations, the Rayleigh-Ritz method was utilized to minimize the Lagrangian functional in the form of an eigenvalue problem. Frequency spectra were computed for long, short, thick, and thin cylindrical shells by varying the nondimensional geometrical parameters, length-to-radius and thickness-to-radius ratios for a simply supported end condition. Influence of different configurations of cylindrical shells on the shell frequencies was studied. For validity, the results obtained were compared with some results of isotropic and single-layered functionally graded cylindrical shells from the literature.
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This paper was recommended for publication in revised form by Associate Editor Yeon June Kang
Shahid Hussain Arshad obtained his master degree in Mathematics from the University of the Punjab, Pakistan in 1997. Presently, he is undertaking his Ph.D. studies in the Department of Mathematics, University of Sargodha, Pakistan. He has also served as a visiting research scholar in the Department of Engineering Science and Mechaincs, Virginia Tech, and State University, Virginia, USA in 2007–2008. His research interests are structural dynamics and material science.
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Arshad, S.H., Naeem, M.N., Sultana, N. et al. Vibration of bilayered cylindrical shells with layers of different materials. J Mech Sci Technol 24, 805–810 (2010). https://doi.org/10.1007/s12206-010-0122-0
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DOI: https://doi.org/10.1007/s12206-010-0122-0