The results of the experiment on complex loading of a thin-walled tubular steel
specimen with three parameter action of axial force, torsion, and internal pressure are
presented. The experiment was carried out on A.A. Ilyushin's testing complex SN-EVM. The
program of the experiment in the deformation space is a cylindrical, helical trajectory with a
displaced center of a screw curvature. Scalar and vector properties of the material steel 45
Keywords: : plasticity; complex loading; trajectory of deformation; helical trajectory; scalar and vector properties of material; thin-walled tubular steel.
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