Optimal design of grid-stiffened panels and shells with variable curvature

摘要

A design strategy for optimal design of composite grid-stiffened structures with variable curvature subjected top global buckling buckling constraints is developed using a discrete optimizer. An improved smeared stiffener theory is used for the global buckling analysis. Local buckling of skin segments is assessed using a Rayleigh-Ritz method that accounts for material anisotropy and transverse shear flexibility.