28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-8.1.3

POSTBUCKLING COMPUTATION OF LARGE STIFFENED STRUCTURES

L. Barriere, B. Castanie, S. Marguet, P. Cresta*
Institut Clement Ader, France; *EADS IW, France

Keywords: nonlinear structural analysis, local post-buckling, domain decomposition, model order reduction, nonlinear reduced localization

A research is conducted to develop a methodology to compute the postbuckling behavior of large stiffened composite or metallic structures. Super-element and special condensation methods are developped using local buckling modes of substructures as generaliezd unknowns.

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