MECHANICS OF SQUARE TUBES BENDING AND CROSS SECTION DISTORSION

Abstract

The paper deals with characteristics of plasticity and strength of tubes materials. Tested where samples with and without the seam weld, annealed and without annealing. Ideal position of the welded wall was studied with respect to neutral axis shift. This being closely connected with the mode of bending when super imposed forces are added. Analysis of the bending forces mechanics and bending stress distribution was also discussed. Examined were also the cross section distorsions and the stabilizing effect of sharp edges.

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