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The effect of yield strength on inelastic buckling of reinforcing bars

Korentz J.

Mechanics and Mechanical Engineering

2010

Vol. 14, nr 2

247-255

The paper presents the results of numerical analyses of inelastic buckling of reinforcing bars of various geometrical parameters, made of steel of various values of yield strength. The results of the calculations demonstrate that the yield strength of the steel the bars are made of influences considerably the equilibrium path of the compressed bars within the range of post yielding deformations. Comparative diagrams of structural behaviour (loading paths) of thin-walled sections under investigation for different strain rates are presented. Some conclusions and remarks concerning the strain rate influence are derived.