Buckling of laminated composite beams

Carol K Shield, Tim Morey

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A set of kinematic assumptions that will accurately model the beam behavior during column buckling for beams of solid rectangular cross section, as well as open and closed thin walled shapes, has been formulated. Because of the various elastic couplings present in fiber beams, a general theory for flexure and torsion is necessary. The theory under development is based on the Vlasov theory of isotropic thin walled bars, but it also includes transverse shear deformation. The anti-clastic curvature that occurs when a plate bends is also taken into account in the present theory. Verification of the theory is illustrated comparing the buckling loads of rectangular cross section beams modeled by the present beam theory to the loads obtained by a plate buckling analysis. Results have been obtained for symmetric and anti-symmetric angle-ply laminates. Excellent agreement is shown between plate buckling solutions and the present beam analysis. Application to box and I-sections is demonstrated.

Original languageEnglish (US)
Title of host publicationProceedings of Engineering Mechanics
Number of pages4
StatePublished - Jan 1 1996
EventProceedings of the 1996 11th Conference on Engineering Mechanics. Part 1 (of 2) - Fort Lauderdale, FL, USA
Duration: May 19 1996May 22 1996


OtherProceedings of the 1996 11th Conference on Engineering Mechanics. Part 1 (of 2)
CityFort Lauderdale, FL, USA


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