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Fundamental frequency of fully clamped composite sandwich plate

¹ School of Aerospace, Civil & Mechanical Engineering, University of New South Wales at the Australian Defence Force Academy, Canberra, Australia
² Department of Aerospace Engineering, Siberian State Aerospace University, Krasnoyarsk, Russia

^* To whom correspondence should be addressed. E-mail: e.morozov{at}adfa.edu.au.

	Abstract

The magnitude of the first natural frequency is often used as a criterion of the design efficiency of sandwich panels. The vibrations of fully clamped sandwich plate are analyzed using Galerkin method. The effects of the panel dimensions, elastic properties and densities of the facings, and core on the fundamental frequency have been studied using the numerical solution, analytical approach, and finite element analysis. It follows from the analysis that the first natural frequency can be calculated with sufficient accuracy on the basis of the analytical solution developed in this work.

First published on June 24, 2009
Journal of Sandwich Structures and Materials 2009, doi:10.1177/1099636209106366


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