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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 26
Edited by: M. Papadrakakis and B.H.V. Topping
Paper II.5

Nonlinear Interactive Buckling Solved by FEM

O. Roth and J. Ravinger

Technical University of Kosice, Slovakia

Full Bibliographic Reference for this paper
O. Roth, J. Ravinger, "Nonlinear Interactive Buckling Solved by FEM", in M. Papadrakakis, B.H.V. Topping, (Editors), "Advances in Computational Mechanics", Civil-Comp Press, Edinburgh, UK, pp 61-67, 1994. doi:10.4203/ccp.26.2.5
Structural members loaded by transverse loading in the plane of greatest stiffness may fail before reaching the full plastic ultimate load by lateral buckling. Steel thin-walled I-cross section plate girders loaded by bending and shear are theoretically and experimentally investigated. The results from the experiments of 16 girders are evaluated by the geometric nonlinear model of the finite element method taking into account the geometric initial imperfections and residual stresses as well. The concept of the elastic critical load, the von-Karman concept, the CSN 731401 and the EUROCODE 3 are used for the evaluation of the load carrying capacity. The rules for a practical use are prepared.

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