• Revathi Pedada
• Bandaru Chandrakala
• Suman Dakey
• Atcha Rao Bommidi

Structural components now-a-days are made of the Composites so knowing the fundamental frequencies and vibration response to various excitations for a given boundary function is paramount. The present work involves extensive study to investigate the free vibration analysis of Graphite/Epoxy, Glass/Epoxy & Kevlar/Epoxy composite plates of solid circular form in simply supported boundary condition by using the Bessel functions as admissible functions for the Raleigh-Ritz method. This analytical work is carried out by following the thin plate theory, Hamilton principle is used to obtain the equilibrium equations for the plate. By variable separable Bessel transcendental equations are obtained, the non dimensional frequency parameter, natural frequency of the plate is calculated. Thus, the natural frequencies and its associated mode shapes of the given geometry under proposed boundary condition is obtained. It is observed that the natural frequencies and modes of vibration for graphite/epoxy shows better improvement during first mode under simply supported boundary condition. It is recommended that the graphite/epoxy is best suitable material for dynamic structural applications.

composite plate, Natural frequency, Bessel function

"FREE VIBRATION ANALYSIS OF SIMPLY SUPPORTED CIRCULAR COMPOSITE PLATE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.519-523, November-2018, Available :http://www.jetir.org/papers/JETIR1811579.pdf

"FREE VIBRATION ANALYSIS OF SIMPLY SUPPORTED CIRCULAR COMPOSITE PLATE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp519-523, November-2018, Available at : http://www.jetir.org/papers/JETIR1811579.pdf