Title

Free Vibration of Eccentrically Stiffened Laminated Plates

Abstract

The free vibration characteristics of laminated plates with discrete stiffeners are analyzed by the finite element method. The analysis takes into consideration transverse shear deformation effects and rotary inertias in the plate and stiffeners. The stiffeners are modeled as laminated beams and are placed along plate nodal lines. A C0 stiffened plate element is developed using a nine noded isoparametric plate element and a three noded isoparametric beam element. Natural frequencies and mode shapes of eccentrically-stiffened laminated plates are presented to demonstrate the efficiency of the methodology. The influences of stiffeners such as depth, number, location and ply orientation on the natural frequencies are examined.

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1997 SAGE Publications, All rights reserved.


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