rational design, polymetallic T-beams, bending moment, deformation.

Homogeneous structures are widely used in various branches of engineering, shipand-aerospace engineering and in the construction industry. Due to the sharp increase in the requirements for creating an economically viable, reliable, long-term, low-resource new equipment, in recent years, research on the problems of calculation and optimal design of composite products has been intensively developing. Numerous, well-developed technologies of bonding, explosion welding, diffusion welding, cold and plasma gas-dynamic spraying allow today to create on a large scale hybrid layered structures necessary for practical use from practically any available structural materials. The main and not yet resolved problem here is to develop principles for the selection and placement of materials to ensure the most efficient operation of the created structures in the required operating conditions. In this paper, this question is considered in relation to one of the widespread types of symmetric and asymmetric T-bars.

Nemirovskii Yuri Vladimirovich, Dr. Sci. Phys. & Math., Professor, Leading Research Worker, S. Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the RAS, Novosibirsk, Russia.