24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-5.2.2

NON-LINEAR VIBRATION AND DAMPING CHARACTERIZATIONS OF DELAMINATED COMPOSITE LAMINATES BY USING MULTILAYERED FINITE ELEMENTS

K. Suzuki, I. Kimpara*, K. Kageyama**
Chiba Institute of Technology; *Kanazawa Institute of Technology; **The University of Tokyo, Japan

Keywords: Vibration Damping, Delaminated Composites, Finite Element Method, Multilayer Theory, Modal Strain Energy Method

In this study, non-linear iterative eigen-frequency analysis and modal-strain-energy-based damping characterization have been established for free vibration problems of composite laminated beams and plates with delaminations by using multilayered isoparametric plate/shell finite elements. Several numerical examples were also conducted to show the validity of the present FE.

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