Paper Title:
Dynamic Instability of Delaminated Composite Plates under Parametric Excitation
  Abstract

The dynamic instability behavior of delaminated composite plates under transverse excitations was investigated experimentally and analytically. An electromagnetic device, acting like a spring with alternating stiffness, was used to parametrically excite the delaminated composite plates transversely. An analytical method, combined with the finite element method, was used to determine the instability regions of the delaminated composite plates based on the modal parameters of the composite plate and the position, the stiffness of the electromagnetic device. The delamination size and position of composite plates were varied to assess their effects on the excitation frequencies of simple and combination resonances in instability regions. The experimental results were found to agree with the analytical ones.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
1765-1768
DOI
10.4028/www.scientific.net/KEM.326-328.1765
Citation
M. K. Yeh, K. C. Tung, "Dynamic Instability of Delaminated Composite Plates under Parametric Excitation", Key Engineering Materials, Vols. 326-328, pp. 1765-1768, 2006
Online since
December 2006
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Price
$32.00
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