DEFORMATION AND HEAT GENERATION IN CYLINDRICAL SAMPLES FROM LOW-CARBON STEEL WITH GROUP RECESS WHEN STRETCHED

VASILEVICH Yurij V., D. Sc. in Phys. and Math., Prof., Head of the Department of Resistance of Materials of Machine-Building Profile, Belarusian National Technical University, Minsk, Republic of Belarus

MOYSEYCHIK Evgenij A., Ph. D. in Eng., Assoc. Prof., Associate Professor of the Department of Information Technologies and Physics and Mathematics, Baranovichi State University, Baranovichi, Republic of Belarus

MOYSEYCHIK Alexander E., Lecturer of the Department of Resistance of Materials of Machine-Building Profile, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

The paper shows that in the root of rectangular grooves of stretched steel cylindrical rods of circular cross section containing groups of equally distant grooves with the same geometry, with an increase in the distance between the grooves, the relative narrowing at the point of fracture decreases by 1.5 or more times when the ratio of the width of the protrusions to the width of grooves changes from 1 to 4. It is obtained that at a constant deformation rate of a specific element the change in the temperature of its points will be proportional to the stresses acting in the elements NTE. It is established that in the cylindrical rods made of low-carbon steel with groups of grooves and protrusions along the length under the influence of an increasing load, the emergence of zones of limiting states, fracture nucleation sites and their development in elements can be determined by the thermal method with a probability of not less than 95 %.

low-carbon steel, cylindrical samples, group grooves, deformation, heat generation

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