Vibration Analysis of Composite Laminated Plates Using Higher Order Theory and Levy’s Solution

This paper represents the exploration on the response of a symmetric composite laminated plate. The properties like weight reduction, Fatigue life, wear resistance, Corrosion resistance, Strength Stiffness and Thermal properties can be improved by forming the composite materials. Since vibration and composite material are two focal growing research topics, almost all the structural apparatus subjected to dynamic loading in their working life and vibration affects the working life of the structure. The most commonly used plate theories are Kirchhoff or classical laminated plate theory of thin plate, Mindlin-Reissene or First order shear deformation theory for moderate plates, Levinson's theory or Third order shear deformation theory. CLPT is the simplest plate theory, which the effect of transverse shear deformation that results in the underestimation of transverse deflection of the plate. FSDT is suitable for analyzing moderately thick plates. However, this theory does not satisfy the stress-free boundary conditions on the surface of the plate so it requires shear correction factors for the analysis of the thick plates TSDT is used. The higher order theory of composite laminated plates using levy solution is developed.