Nonlinear static and dynamic damped response of a composite rectangular plate resting on a two-parameter elastic foundation

Chandrasekharappa, G (1992) Nonlinear static and dynamic damped response of a composite rectangular plate resting on a two-parameter elastic foundation. In: Computers & Structures, 44 (3). pp. 609-618.

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Abstract

Nonlinear static and dynamic response analyses of a clamped. rectangular composite plate resting on a two-parameter elastic foundation have been studied using von Karman's relations. Incorporating the material damping, the governing coupled, nonlinear partial differential equations are obtained for the plate under step pressure pulse load excitation. These equations have been solved by a one-term solution and by applying Galerkin's technique to the deflection equation. This yields an ordinary nonlinear differential equation in time. The nonlinear static solution is obtained by neglecting the time-dependent variables. Thc nonlinear dynamic damped response is obtained by applying the ultraspherical polynomial approximation (UPA) technique. The influences of foundation modulus, shear modulus, orthotropy, etc. upon the nonlinear static and dynamic responses have been presented.

Item Type:	Journal Article
Publication:	Computers & Structures
Publisher:	Elsevier science
Additional Information:	Copyright of this article belongs to Elsevier science.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	02 May 2011 05:47
Last Modified:	02 May 2011 05:47
URI:	http://eprints.iisc.ac.in/id/eprint/37281

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