Free Vibration of Eccentrically Stiffened Laminated Plates
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.
K. Chandrashekhara and M. Kolli, "Free Vibration of Eccentrically Stiffened Laminated Plates," Journal of Reinforced Plastics and Composites, SAGE Publications, Jan 1997.
The definitive version is available at http://dx.doi.org/10.1177/073168449701601002
Mechanical and Aerospace Engineering
Article - Journal
© 1997 SAGE Publications, All rights reserved.