Reliability-based buckling optimization with an accelerated Kriging metamodel for filament-wound variable angle tow composite cylinders

•A reliability-based optimization framework for filament-wound cylinders is presented.•The uncertainty in the winding angle is considered using a Kriging metamodel.•A moving search window is used to accelerate the convergence of the metamodel.•The buckling load of constant- and variable-thickness cylinders are compared.