Kolodnyts'ka R. Thermoactivation analysis of destruction of materials in conditions of non-stationary deformation (necking).

Process of destruction of materials. Thesis is devoted to the registration supercritical area of deformation for prediction of long durability. Hardware-software complex developed by us for a research of non-stationary processes of deformation of materials is described in this thesis. The experimental researches are carried out for steel, aluminium, copper and polyethylene samples in supercritical area of deformation. Thesis is shown, that the process of necking is self-similar. We created a universal database of materials. This thesis is shown, that the introduction a kinetics of modification of outline of a sample to closed set of equations of the thermoactivation analysis allows increase an exactitude of prediction of long durability. It is uses. The area of application-prediction of the construction life time.