plasticity, elasticity, plane stress state, thermoelasticity.

In this paper, the thermoelastic state of a thin circular disk is considered. A heat source of known radius acts in the center of the disk. The temperature field of the central part is homogeneous. The temperature and pressure are determined at the outer boundary of the disk. The stress state is determined using the Mises plasticity condition, taking into account the independence of all mechanical constants of the material from temperature. The impossibility of simultaneous generation of several plastizones is shown. Stress graphs are given. The results obtained are compared with known solutions.

Maria Mikhailovna Visloguzova, student, Voronezh State University, Voronezh, Russia.

Alexey Viktorovich Kovalev, Professor, Doctor of physical and mathematical Sciences, Voronezh State University, Military training and research center of the air force “Air force Academy named after prof. N.E.Zhukovsky and Yu.A.Gagarin”, Voronezh, Russia.