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Post-Buckling Behavior of Laminated Composite Cylindrical Shells Subjected to Axial, Bending and Torsion Loads

DOI: 10.4236/wjet.2015.34019, PP. 185-194

Keywords: Post-Buckling, Cylindrical Shells, Eigen Imperfection Shapes, Axial Compressive Load, Bending Load, Torsion Load, Arc-Length Method, Knock-Down Factor

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Abstract:

In present work, post-buckling behavior of imperfect (of eigen form) laminated composite cylindrical shells with different L/D and R/t ratios subjected to axial, bending and torsion loads has been investigated by using an equilibrium path approach in the finite element analysis. The Newton-Raphson approach as well as the arc-length approach is used to ensure the correctness of the equilibrium paths up to the limit point load. Post-buckling behavior of imperfect cylindrical shells with different L/D and R/t ratios of interest is obtained and the theoretical knock-down factors are reported for the considered cylindrical shells.

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