Record Details

Dynamic analysis of laminated composite plates using a layer-wise mixed finite element model

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Dynamic analysis of laminated composite plates using a layer-wise mixed finite element model
 
Creator DESAI, YM
RAMTEKKAR, GS
SHAH, AH
 
Subject sandwich plates
bidirectional composites
multilayered plates
rectangular-plates
free-vibrations
stability
mixed finite element
hamilton's energy principle
laminated composite plate
 
Description This paper deals with an accurate, three-dimensional, higher order, mixed finite element (FE) modeling for the free vibration analysis of multi-layered thick composite plates. An 18-node, three-dimensional mixed FE model has been developed by using Hamilton's energy principle. Continuity of the transverse stress and the displacement fields has been enforced through the thickness of laminated composite plate. Further, in addition to the displacement components, the transverse stress components (sigma(z), tau(xz), and tau(yz), where z is the thickness direction) have been invoked as the nodal degrees-of-freedom by applying elastic equations between stress and displacement fields. Thus, the present FE model has a novel feature of maintaining the fundamental elastic relationship throughout an elastic continuum. Natural frequencies of laminated composite plates obtained through the present formulation have been shown to be in good agreement with the available elasticity and closed form solutions. Stress mode shapes have been plotted for the fundamental natural vibration of plates with various lamination schemes. Strain variations through the thickness of laminated plates have also been presented graphically to show the magnitude of discontinuity in the variation of transverse strains at the layer interfaces. (C) 2002 . .
 
Publisher ELSEVIER SCI LTD
 
Date 2011-07-22T00:38:24Z
2011-12-26T12:52:14Z
2011-12-27T05:39:18Z
2011-07-22T00:38:24Z
2011-12-26T12:52:14Z
2011-12-27T05:39:18Z
2003
 
Type Article
 
Identifier COMPOSITE STRUCTURES, 59(2), 237-249
0263-8223
http://dx.doi.org/10.1016/S0263-8223(02)00121-6
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6050
http://hdl.handle.net/10054/6050
 
Language en