Buckling of stiffened curved panels under uniform axial compression

K. L. Tran (1) , Cyril Douthe (2, 3) , Karam Sab (4, 2) , J. Dallot (1) , L. Davaine (5)

1 SNCF Direction de l'Ingénierie - Traction Electrique
2 msa - Matériaux et Structures Architecturés
3 IFSTTAR/MAST/EMMS - Expérimentation et Modélisation des Matériaux et des Structures
4 navier umr 8205 - Laboratoire Navier
5 Ingerop, Expertises et Structure

In bridge construction, the use of stiffened plates for box-girder or steel beams is common day to day practice. The advantages of the stiffening from the economical and mechanical points of view are unanimously recognized. For curved steel panels, however, applications are more recent and the literature on their mechanical behaviour including the influence of stiffeners is therefore limited. Their design with commercial finite element software is significantly time-consuming, which reduces the number of parameters which can be investigated in an optimization procedure. The present paper is thus dedicated to the study of the behaviour of stiffened curved panels under uniform longitudinal compression. It addresses the linear buckling and the ultimate strength which are both influenced by the coupled effects of curvature and stiffening. It finally proposes a design methodology based on that for stiffened flat plates adopted by European Standards and a column-like behaviour.

Mots clés: FLAMBEMENT; COMPORTEMENT

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]; Electrons fortement corrélés [cond-mat.str-el]; Physique Atomique [physics.atom-ph]

K. L. Tran, Cyril Douthe, Karam Sab, J. Dallot, L. Davaine. Buckling of stiffened curved panels under uniform axial compression. Journal of Constructional Steel Research, 2014, 103, pp 140-147. ⟨10.1016/j.jcsr.2014.07.004⟩. ⟨hal-01073382⟩