Buckling of an Elastoplastic Bar
V. I. Van'ko, E. S. Perelygina
Bauman Moscow State Technical University, Moscow, 105005 Russia
Keywords: buckling, hinged bar, initial deflection, arbitrary (σ–ε) diagram
Abstract
Buckling of a bar of an elastoplastic material is studied. It is shown that for any (σ–ε) diagram of the bar material, the limit load (the longitudinal external force) in dimensionless variables that the bar can withstand does not exceed the current bending stiffness of the most loaded (in terms of the bending moment) section.
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