The results of numerical simulation for 45 steel deformation with the use of general
and linearized models of the theory of processes along flat smooth trajectories with curvilinear
sectors are presented. The results of calculation are compared with the data of thin-walled
cylindrical specimen deformation experiment, carried out on SN-EVM testing complex. It is
shown that for the realized types of experimental trajectories symmetric with respect to the
bisector of a right angle Ilyushin.s postulate of isotropy is fulfilled in the proper way.
Keywords: elastoplastic deformation; postulate of isotropy; numerical simulation.
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