Abstract
The initial postbuckling behavior of optimally designed structures of two generic types is investigated. The structures are straight, simply-supported, inextensional columns, loaded by axial thrust and flat, simply-supported, axisymmetric circular plates, loaded by radial thrust. The structures are optimal in the sense that they withstand the largest possible loads prior to buckling, while satisfying fixed volume and minimum allowable gage constraints. The stability analysis is based upon Koiter's general theory of the postbuckling behavior of structures.
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