Analysis of damped composite sandwich plates using plate bending elements with substitute shear strain fields based on Reddy's higher order theory


Nayak, A.K., Shenoi, R.A. and Moy, S.S.J. (2002) Analysis of damped composite sandwich plates using plate bending elements with substitute shear strain fields based on Reddy's higher order theory Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 216, (5), pp. 591-606. (doi:10.1243/0954406021525377).

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Description/Abstract

Two new C0 assumed strain finite element formulations of Reddy's higher-order theory are used to determine the natural frequencies and loss factors of layered anisotropic composite and sandwich plates. Material properties typical of fibre polyester resins for the skin and HEREX C70 PVC foam damping materials for cores are used to show the parametric effects of plate aspect ratio, length-thickness ratio on natural frequencies and loss factors.
A consistent mass matrix is adopted in the present formulation. Both frequency-independent and frequency-dependent damping of viscoelastic materials are considered. The developed elements are free from spurious zero energy modes due to the assumed strain approach.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1243/0954406021525377
ISSNs: 0954-4062 (print)
Keywords: damping, composite sandwich plates, assumed strain approach, higher order theory
Subjects:
ePrint ID: 22030
Date :
Date Event
2002Published
Date Deposited: 17 Mar 2006
Last Modified: 16 Apr 2017 22:53
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/22030

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