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A COMPARISON OF 9-NODE AND 16-NODE QUADRILATERAL ELEMENTS BASED ON HIGHER-ORDER LAMINATE THEORIES FOR ESTIMATION OF TRANSVERSE STRESSES

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Title A COMPARISON OF 9-NODE AND 16-NODE QUADRILATERAL ELEMENTS BASED ON HIGHER-ORDER LAMINATE THEORIES FOR ESTIMATION OF TRANSVERSE STRESSES
 
Creator MANJUNATHA, BS
KANT, T
 
Subject plate bending element
composite plates
rectangular-plates
sandwich plates
thick plates
deformation
flexure
 
Description C-degrees finite elements based on a set of higher-order theories are projected to provide reliable predictions for interlaminar stresses in layered composite and sandwich laminates. These theoretical-cum-computational models incorporate laminate deformations which account for the effects of transverse shear deformation, transverse normal strain/stress and a nonlinear variation of inplane displacements with respect to the thickness coordinate, thus eliminating the need for shear correction coefficients. The inplane stresses are evaluated via constitutive relations, while the interlaminar stresses are evaluated by using the equilibrium equations. 16 and 9 noded Lagrangian selectively integrated isoparametric elements are used in this study. The present results, when compared with available elasticity and closed-form laminate solutions, show good agreement. New results for sandwich laminates are also presented which may serve as a benchmark for future investigations.
 
Publisher TECHNOMIC PUBL CO INC
 
Date 2011-08-31T08:42:07Z
2011-12-26T12:59:28Z
2011-12-27T05:51:35Z
2011-08-31T08:42:07Z
2011-12-26T12:59:28Z
2011-12-27T05:51:35Z
1992
 
Type Article
 
Identifier JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, 11(9), 968-1002
0731-6844
http://dx.doi.org/10.1177/073168449201100902
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12654
http://hdl.handle.net/10054/12654
 
Language en