Damping of Composite Tubes With Embedded Viscoelastic Layers

[+] Author and Article Information
Haiming Zhou, Mohan D. Rao

Mechanical Engineering and Engineering Mechanics Department, Michigan Technological University, Houghton, MI 49931

J. Vib. Acoust 118(3), 384-389 (Jul 01, 1996) (6 pages) doi:10.1115/1.2888194 History: Received July 01, 1993; Revised November 01, 1994; Online February 26, 2008


In this paper, the results of analytical investigation into the effects of cocuring fiber composite tubes with commercially available damping materials are presented. A comprehensive theory has been developed for studying the vibration of a composite tube with multiple viscoelastic damping layers. The effects of transverse shear deformation, transverse normal stress and strain, rotary inertia, and higher-order stiffness terms are included in the modeling along with shear correction factors. Resonance frequency and loss factor results as a function of various geometric and physical parameters are presented for composite tubes with single and double damping layers. It is demonstrated through a parametric study that in all these systems, careful selection of damping and pre-preg material is needed to optimize the damping benefits desirable and the stiffness reductions that can be tolerated.

Copyright © 1996 by The American Society of Mechanical Engineers
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