work-hardening incompressible rigid-plastic body, limiting state, energy dissipation, surface of strain states, loading surface.

The approach to the description of limiting states of plastic bodies is considered. This approach is related to the surface of strain states of work-hardening incompressible rigid-plastic body. The specific dissipation of the work of internal forces of plastic deformations, which are connected with material hardening, is taken as criterial quantity that describes the limiting state. The loading surface is related to level lines of the surface of strain states. It is considered that limiting states correspond to limiting hardening, that is to limiting position of the loading surface.

1. Bukhanko, Anastasia Andreevna Candidate of Phys. & Math., Assoc. Professor, Samara State Aerospace University, Samara

2. Loshmanov, Anton Yurevich Candidate of Phys. & Math., Assoc. Professor, Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur

3. Khromov, Aleksander Igorevich Dr. Sci. Phys. & Math., Professor, Komsomolsk-on-Amur State Technical University, Komsomolskon-Amur