Problems of reliable functioning and materials consumption decrease for modern technique constructions operating under conditions of high level of power and temperature loadings, and ionizing radiation is problematic in the mathematical modelling of nonelastic behaviour. The increase in working parameters of modern machines and devices leads to an increase in both the general and local intensity of construction. Real loading processes for such constructions lead to nonelastic (viscous-plastic) deformations. Thus the loading is a complex nonisothermal one, and a mode of its changes may be...