PASSIVE METHOD OF THERMAL NON-DESTRUCTIVE TESTING OF STEEL ELEMENTS AND PRODUCTS ON THE BASIS OF THE MECHANISM OF DEFORMATION HEAT GENERATION

Abstract

The features of heat generation and the basic capabilities of the passive method of thermal non-destructive testing of steel elements and products are considered. The mechanism of heat generation in steel is presented and the structure of the formula for changing its temperature during deformation is substantiated. It is shown that the diagnosis of steel elements in the passive mode should be carried out with the operation of heat sources in them, resulting from the force effects on the structure. The features of determining the stress in steel elements by the passive thermal method are considered. It is shown that the passive method of thermal non-destructive testing of steel structures loaded with forces continuously changing in time, under the action of which internal deformation sources of heat and surface temperature fields operate in potentially dangerous areas of the elements, allows the kinetics and anomalies of temperature fields to exercise health -plastic stages of steel, with the birth and development of destruction.