Creep and long-term strength of the rod interacting with the fluid sodium

We suggest the mathematical model describing the creep and the long-term strength of the pearlitic steel with the fluid sodium as aggressive environment. The base theory we use is the Yu. N. Rabotnov kinetic equations. We suggest the stable numerical algorithm solving the problem, complete with the diffusion equations describing the kinetics of mechanical characteristics of material. The calculation results of the stress-strain state of rod in fluid sodium are given. The verification of the numerical model adequacy to the experimental data is made.