ORIGINAL PAPER
Experimental and Finite Element Studies on Free Vibration of Skew Plates
 
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1
Department of Mechanical Engineering GM Institute of Technology Davangere, Karnataka, INDIA-577006
 
2
Department of Mechanical Engineering J.N.N. College of Engineering Shivamogga, Karnataka, INDIA-577204
 
3
Department of Civil Engineering Reva Institute of Technology and Management Bangalore, Karnataka, INDIA-560064
 
 
Online publication date: 2014-08-30
 
 
Publication date: 2014-05-01
 
 
International Journal of Applied Mechanics and Engineering 2014;19(2):365-377
 
KEYWORDS
ABSTRACT
The present paper deals with the experimental studies carried out on free vibration of isotropic and laminated composite skew plates. The natural frequencies were also determined using QUAD8 finite element of MSC/NASTRAN and a comparison was made between the experimental values and the finite element solution. The effects of the skew angle and aspect ratio on the natural frequencies of isotropic skew plates were studied. The effects of the skew angle, aspect ratio, fiber orientation angle and laminate sequence (keeping the number of layers constant) on the natural frequencies of antisymmetric composite laminates were also studied. The experimental values of natural frequencies are in good agreement with the FE solutions. The natural frequencies are found to increase with an increase in the skew angle. The variation of natural frequencies with the aspect ratio is small and negligible both for isotropic and laminated composite skew plates.
 
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