Asymmetric Secondary Buckling in Monosymmetric Sandwich Struts

An interactive buckling model for sandwich struts accounting for buckle pattern localization is extended to cover such struts with differing face plate thicknesses. Although this does not affect the critical buckling characteristics of the structure, there is a significant change in the postbuckling behavior; formerly symmetric secondary buckling and imperfection sensitivity characteristics lose this quality as both become asymmetric.

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