Calculation of the collapse load of an axially compressed laminated composite stringer-stiffened curved panel–An engineering approach

The effective width method that is widely applied for the analysis of isotropic planar stringer-stiffened panels has been extended to laminated composite stringer-stiffened circular cylindrical panels. The approach was modified and adapted to handle curved composite structures. Panels stiffened by b...

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Vydáno v:Composite structures Ročník 83; číslo 4; s. 341 - 353
Hlavní autoři: Pevzner, P., Abramovich, H., Weller, T.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Oxford Elsevier Ltd 01.06.2008
Elsevier Science
Témata:
Buckling
Buckling load
Collapse
Effective width
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laminated composite curved panel
Physics
Solid mechanics
Stringer-stiffened panel
Structural and continuum mechanics
Collapse
Buckling load
Laminated composite curved panel
Effective width
Stringer-stiffened panel
Stratified material
Localized mode
Experimental study
Modeling
Optimization
Reinforced structure
Reinforced shell
Finite element method
Local buckling
Critical load
Circular cylinder
Axial load
Cylindrical shell
Curvature
Buckling
Torsion
Stiffener
ISSN:0263-8223, 1879-1085
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Popis
Shrnutí:The effective width method that is widely applied for the analysis of isotropic planar stringer-stiffened panels has been extended to laminated composite stringer-stiffened circular cylindrical panels. The approach was modified and adapted to handle curved composite structures. Panels stiffened by blade type stiffeners, J-form stiffeners and T-form stiffeners were considered in the present study. Bending buckling of the stiffeners, their torsional buckling, combined bending and torsion buckling and local buckling of the stringers were accounted for in the investigation. Using the proposed extended effective width method, a MATLAB based software code TEW 1 Available upon request. 1 was developed and implemented. To validate this code, predictions obtained by it were compared with experimental results and with finite element calculations. Good agreement between the present proposed method, experiments and finite element simulations was found, thus yielding an efficient, simple to apply and fast engineering code to be used in design and optimization stages.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2007.05.001