Record Details

Mixed finite element model for laminated composite beams

DSpace at IIT Bombay

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Title Mixed finite element model for laminated composite beams
 
Creator DESAI, YM
RAMTEKKAR, GS
 
Subject symmetrical unsymmetric composite
plate-theory
bidirectional composites
multilayered plates
stress continuity
sandwich plates
thin
mixed finite element
minimum potential energy principle
laminated composite beam
 
Description A novel, 6-node, two-dimensional mixed finite element (FE) model has been developed to analyze laminated composite beams by using the minimum potential energy principle. The model has been formulated by considering four degrees of freedom (two displacement components u, w and two transverse stress components sigma(z), tau(xz)) per node. The transverse stress components have been invoked as nodal degrees of freedom by using the fundamental elasticity equations. Thus, the present mixed finite element model not only ensures the continuity of transverse stress and displacement fields through the thickness of the laminated beams but also maintains the fundamental elasticity relationship between the components of stress, strain and displacement Fields throughout the elastic continuum. This is an important feature of the present formulation, which has not been observed in various mixed formulations available in the literature. Results obtained from the model have been shown to be in excellent agreement with the elasticity solutions for thin as well as thick laminated composite beams. A few results for a cross-ply beam under fixed support conditions are also presented.
 
Publisher TECHNO-PRESS
 
Date 2011-08-31T08:18:14Z
2011-12-26T12:59:27Z
2011-12-27T05:51:34Z
2011-08-31T08:18:14Z
2011-12-26T12:59:27Z
2011-12-27T05:51:34Z
2002
 
Type Article
 
Identifier STRUCTURAL ENGINEERING AND MECHANICS, 13(3), 261-276
1225-4568
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12646
http://hdl.handle.net/10054/12646
 
Language en