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Article | REF: C2517 V1

Thin-walled construction

Authors: Anna SOKOL-PALISSON, Léopold SOKOL

Publication date: May 10, 2009, Review date: February 26, 2015

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1. Special features of thin elements

1.1 Definition of this class

Two aspects of behavior lead to the qualification of a structural element as "thin":

  • under compression: the element is considered "thin-walled" when, under compression, some of its parts are susceptible to local instability before the elastic limit is reached. Such instabilities include wall buckling, instability due to cross-section distortion (buckling of stiffeners) and local crushing on supports;

  • under the effect of torsion: the element is considered "thin-walled" when, under the effect of torsion alone, the normal stresses created by torsion in the section are no longer negligible. This situation arises for a load applied outside the shear center, when each of the three...

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