Abstract
Under uniaxial compression, the buckling of functionally graded carbon nanotube reinforced composite cylindrical shell panel with a square cutout is investigated. The buckling of functionally graded carbon nanotube reinforced composite cylindrical shell panel is studied through finite element method. The governing equations are derived employing higher order shear deformation theory. A 8-noded isoparametric element with 9 degrees of freedom at every node is used. The critical loads for functionally graded carbon nanotube reinforced composite cylindrical shell panel are shown for different volume fractions, different thicknesses, various cutout sizes and five different CNT patterns. The findings demonstrate that the FG-O and FG-X CNT distributions are more capable of bearing buckling loads than UD, FG-V and FG- Λ patterns. The critical buckling load decreases as the cut out size (d/a) increases.
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