Abstract
In the present investigation, the influence of ply-orientation and boundary conditions on the vibration behaviour of laminated composite panels has been studied by using finite element technique. Towards this, an eight noded iso-parametric plate element has been used to discretise the composite panel with seven degrees of freedom at each node. In the present mathematical formulation, the effect of shear deformation has been incorporated by using higher order shear deformation theory (HOSDT). Therefore, the present model is holds good for both thin and thick panels without applying any shear correction factors. The efficiency of the present model is confirmed by comparing present results with accessible literature. The parametric studies are carried out to examine the effect of various parameters such as different boundary conditions, ply-orientation, and thickness of the laminated panel. It is observed from this study that the variation in natural frequency of the panel under different ply-orientations and boundary condition is predominant as compared to that of thick plate configuration.
Published Version
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