Modeling of elastoplastic deformation of low-carbon steel along multi-link plane strain trajectories

To verify the mathematical model of the theory of processes, numerical calculations of the complex elastoplastic deformation of low-carbon steel 45 along multi-link strain trajectories with different corner angles under combined tension-compression with torsion were carried out. The numerical calculations are compared with the experimental data obtained by the authors on the SN-EVM testing machine on thin-walled tubular specimen. It is shown that the used mathematical model qualitatively and quantitatively satisfactorily describes the main effects of complex plastic deformation for the class of plane multi-link broken strain trajectories.