A finite element formulation for the analysis of laminated composite shells

An improved finite element model for the linear analysis of anisotropic and laminated doubly curved, moderately thick composite shells/shell-panels is presented. The first order shear deformation shell theory is used as a basis for the development of proposed finite element model. The Mixed Interpol...

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Bibliographic Details
Published inComputers & structures Vol. 82; no. 20; pp. 1623 - 1638
Main Authors Hossain, S.J, Sinha, P.K, Sheikh, A.H
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2004
Subjects
Composite laminates
Finite elements
Linear analysis
Shells
Shells
Finite elements
Composite laminates
Linear analysis
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Summary:An improved finite element model for the linear analysis of anisotropic and laminated doubly curved, moderately thick composite shells/shell-panels is presented. The first order shear deformation shell theory is used as a basis for the development of proposed finite element model. The Mixed Interpolation of Tensorial Components (MITC) approach is adopted to overcome the effects of shear and membrane locking on the predicted structural response. Special attention is paid to the spherical shell-panels which are rectangular in plan. The extensional and flexural stresses are regularized by least square smoothing technique. The out-of-plane stress profiles are recovered from the 3-D equilibrium equations. The results are compared with the available analytical and numerical solutions and the agreement between them is found to be excellent in both the cases of shallow and deep shells. The performance of the proposed element is also illustrated with numerical examples.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0045-7949
1879-2243
DOI:10.1016/j.compstruc.2004.05.004