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Title: Dispersion of waves in immersed laminated composite hollow cylinders
Authors: Xi, Z.C. 
Liu, G.R. 
Lam, K.Y. 
Shang, H.M. 
Issue Date: 14-Feb-2002
Source: Xi, Z.C., Liu, G.R., Lam, K.Y., Shang, H.M. (2002-02-14). Dispersion of waves in immersed laminated composite hollow cylinders. Journal of Sound and Vibration 250 (2) : 215-227. ScholarBank@NUS Repository.
Abstract: A layer element method (LEM) is presented for analyzing frequency and group velocity dispersive behaviours of waves in a laminated composite cylinder surrounded by a fluid. The LEM applies finite elements to model the radial displacement of the cylinder and the radial pressure of the fluid, and complex exponentials to express the axial and circumferential displacements of the cylinder as well as the axial and tangential pressures of the fluid. The dispersive equation for the fluid-loaded cylinder follows from variational techniques. The frequency and group velocity dispersive relationships of the fluid-coupling cylinder are obtained by means of the Rayleigh quotient. Numerical results are given for hybrid laminated composite cylinders and cylindrical shells submerged in water. The addition of the fluid is proven to have considerable impact on the group velocity spectra of waves in laminated composite cylinders.
Source Title: Journal of Sound and Vibration
ISSN: 0022460X
DOI: 10.1006/jsvi.2001.3919
Appears in Collections:Staff Publications

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