Abstract
In this study, an elastic nonlinear Ritz analysis is used to study the buckling behavior of axially loaded imperfect fiber reinforced polymeric cylindrical shells. Parameter studies on the effects of initial geometric imperfections demonstrate the existence of well-defined lower bounds to buckling loads and the dominance of characteristic incremental deformation modes as this lower bound is approached. For the fiber reinforced polymeric composite shells as for the isotropic shells, it is shown that the reduced stiffness method provides reliable estimates of these lower bounds to buckling loads and consequently provides an important basis for design.
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