Volume : 7, Issue : 2, FEB 2021

FINITE ELEMENT VIBRATION ANALYSIS OF SANDWICH PLATE

*PIYUSH SINGH, NARENDRA JAISWAL, ASHISH DAKSH

Abstract

This research work focuses on free vibration analysis of sandwich composite plates using finite element vibration methods. The finite element formulations are developed based on the First Order Shear Deformation Theory (FSDT) considering layer wise FSDT for each of the three sandwich layers. Displacement equations for core are linearly interpolated between the face plates using continuity of the displacement fields.

A sandwich plate is fabricated from jute fiber honeycomb core and glass fiber face plates to study the vibration response. Hand layup technique is used to fabricate the composite plate. The vibration responses are acquired to study the free vibration behavior of composite plates. Experimental results are analyzed and are compared with analytical solution. Comparable results are obtained, thus indicating the accuracy of the formulation. Findings of this study provide useful insights and will be very helpful for further studies in vibration analysis of sandwich composite plates.

Keywords

FEM, FSDT, MODE SHAPE, SANDWICH STRUCTURE, NATURAL FREQUENCY, COMPOSITE MATERIAL.

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