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Article | REF: C2511 V1

Structural instability of bars

Author: René MAQUOI

Publication date: May 10, 2009, Review date: February 16, 2015

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3. Flexural buckling

3.1 Elastic critical load

An ideal column with a uniform doubly symmetrical cross-section and axially loaded at its ends in compression can buckle by bending around one of the main axes of its cross-section under an elastic critical load, also known as the "Euler critical load":

Pcr=π2El(αL)2( 1 )

with :

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