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Free Vibration of the Composite Laminated Cylindrical Shells Stiffened with the Axial Stiffeners
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 Title & Authors
Free Vibration of the Composite Laminated Cylindrical Shells Stiffened with the Axial Stiffeners
Lee, Young-Shin; Kim, Young-Wann;
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 Abstract
The analytical solutions for the free vibration of cross-ply laminated composite cyllindrical shell with axial stiffeners(stringers) are presented usint the energy method. The stiffeners are taken to be smeared over the surface of shell with the smeared stffener theory. The effect of the parameters such as the stacking sequences, the shell thichness, the shell radius-to stringer depth ratio, the stringer depth-to width ratio, the shell length-to radius ratio are studied. By comparison with the previously published experimental results and the analytical results for the stiffened isotropic cylindrical shell and the unstiffened orthotropic composite laminated cylindrical shell, it is shown that natural frequencies can be determined with adequate accuracy.
 Keywords
Stiffener;Stringer;Smeared Stiffener Theory;
 Language
Korean
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