3_2024_sen_9

Title of the article VISUALIZATION OF KINETICS OF PLASTIC DEFORMATIONS IN STEEL PRODUCTS BY INFRARED RADIATION
Authors

MOYSEYCHIK Eugene A., D. Sc. in Eng., Assoc. Prof., Professor of the Department “Bridges and Tunnels”, 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.

MOYSEYCHIK Alexander E., Ph. D. in Eng., Engineer, Unitsky String Technologies Inc., 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.

YAKOVLEV Alexander A., Senior Lecturer of the Department “Bridges and Tunnels”, 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.
In the section MATERIALS SCIENCE IN MECHANICAL ENGINEERING
Year 2024
Issue 3(68)
Pages 78–87
Type of article RAR
Index UDK 539.3+621.8.035
DOI https://doi.org/10.46864/1995-0470-2024-3-68-78-87
Abstract The purpose of this article is to identify the possibility of infrared computer thermography for diagnosing the development of plastic deformations of steel products. Methods of conducted experimental studies were published. The results of experiments are presented and analyzed. The possibility of application of infrared computer thermography for research of regularities of origin, propagation and localization of plastic deformation in steel elements during their deformation at room temperatures and after preliminary cooling is substantiated. It is shown that for smooth specimens with distance from the machine grip, the temperature of near-surface layers differs to a greater extent from the corresponding temperature for the mid-surface layers. The excess of the deformation temperature of the surface layers over the mid-surface layers depends on the stage of deformation of the sample material. At the end of the elastic stage of the specimen, the temperatures differ by 1.7 °C, and at the beginning of fracture with the formation of the neck, the excess of surface layer temperatures reached 4.5 °C. In specimens with lateral notches with a distance from the machine grip, the surface temperature did not change during loading. In the sections passing through the zone of scale delamination near the notches, the surface temperature in the middle part of the specimen is higher by 3.0–3.5 °C than in the vicinity. The maximum temperature of the metal surface during deformation reached 70 °C. It was found that the sections of the specimen adjacent to the notch in the process of deformation lose position stability, manifested in the change of the initial position to the deformed one. At the same time, the metal adjacent to the notch in the form of a prism with a triangular base and a height equal to the sheet thickness lost stability under the action of normal and tangential stresses. The metal in the prism volume was practically not deformed. The prism base temperature increased slightly only after the initiation of the notch crack.
Keywords plastic deformations, infrared radiation, specimens, temperature, computer thermography
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Bibliography
  1. Makhutov N.A., Moskvichev V.V., Morozov E.M., Goldstein R.V. Sovremennye zadachi mekhaniki razrusheniya i mekhaniki katastrof [Unification of computation and experimental methods of testing for crack resistance: development of the fracture mechanics and new goals]. Industrial laboratory. Diagnostics of materials, 2017, vol. 83, no. 10, pp. 55–64. DOI: https://doi.org/10.26896/1028-6861-2017-83-10-55-64 (in Russ.).
  2. Makhutov N., Moskvichev V., Postnikova U. Failure and accident risks of technical systems in Siberia and the Arctic. RT&A, 2022, vol. 17, Special Issue no. 3(66), pp. 49–58. DOI: https://doi.org/10.24412/1932-2321-2022-366-49-58.
  3. Moskvichev V.V., et al. Prikladnye zadachi konstruktsionnoy prochnosti i mekhaniki razrusheniya tekhnicheskikh sistem [Applied problems of structural strength and fracture mechanics of technical systems]. Novosibirsk, Nauka Publ., 2021. 796 p. (in Russ.).
  4. Zuev L.B. Avtovolnovaya plastichnost. Lokalizatsiya i kollektivnye mody [Autowave plasticity. Localization and collective modes]. Moscow, Fizmatlit Publ., 2019. 208 p. (in Russ.).
  5. Bøving K.G. NDE handbook: non-destructive examination methods for condition monitoring. Butterworth-Heinemann, 2014. 428 p. DOI: https://doi.org/10.1016/C2013-0-06279-2.
  6. Golovin D.Yu., et al. Dinamicheskie termograficheskie metody nerazrushayushchego ekspress-kontrolya [Dynamic thermographic methods of non-destructive express testing]. Moscow, TEKHNOSFERA Publ., 2019. 214 p. (in Russ.).
  7. Vavilov V.P. Infrakrasnaya termografiya i teplovoy kontrol [Infrared thermography and thermal control]. Moscow, Spektr Publ., 2013. 575 p. (in Russ.).
  8. Moyseychik E.A. Teplovoy kontrol materialov, stalnykh konstruktsiy i mashin [Thermal control of materials, steel structures and machines]. Minsk, Kovcheg Publ., 2022. 200 p. (in Russ.).
  9. Sokovikov M.A. Issledovanie lokalizatsii plasticheskoy deformatsii i razrusheniya pri dinamicheskom nagruzhenii metodom infrakrasnoy termografii [The study of plastic strain and fracture localization under dynamic loading using infrared thermography technique]. Bulletin of Perm University. Physics, 2018, no. 2(40), pp. 52–57. DOI: https://doi.org/10.17072/1994-3598-2018-2-52-57 (in Russ.).
  10. Iziumova A.Y., Vshivkov A.N., Prokhorov A.E., Plekhov O.A., Venkatraman B. Issledovanie evolyutsii istochnikov tepla v protsesse uprugoplasticheskogo deformirovaniya titanovogo splava OT4-0 na osnove kontaktnykh i beskontaktnykh izmereniy [Study of heat source evolution during elastic-plastic deformation of titanium alloy Ti-0.8Al-0.8Mn based on contact and non-contact measurements]. PNRPU mechanics bulletin, 2016, no. 1, pp. 68–81. DOI: https://doi.org/10.15593/perm.mech/2016.1.05 (in Russ.).
  11. Kostina A.A., Bayandin Yu.V., Plekhov O.A. Modelirovanie protsessa nakopleniya i dissipatsii energii pri plasticheskom deformirovanii metallov [Model of energy accumulation and dissipation in plastically deformation metals]. Physical mesomechanics, 2014, vol. 17, no. 1, pp. 43–49 (in Russ.).
  12. Moyseychik E.A., Shafray S.D. Modelirovanie raboty i termografiya rastyanutykh svarnykh soedineniy stalnykh konstruktsiy s parnymi nakladkami [Simulation of performance and thermography of tensioned welded joints of steel structures with paired straps]. Bulletin of civil engineers, 2014, no. 6(47), pp. 58–63 (in Russ.).
  13. Moyseychik E.A., Vavilov V.P. Analyzing patterns of heat generated by the tensile loading of steel rods containing discontinuity-like defects. International journal of damage mechanics, 2018, vol. 27, iss. 6, pp. 950–960. DOI: https://doi.org/10.1177/1056789517715087.
  14. Oliferuk W., Maj M., Zembrzycki K. Determination of the energy storage rate distribution in the area of strain localization using infrared and visible imaging. Experimental mechanics, 2015, vol. 55, iss. 4, pp. 753–760. DOI: https://doi.org/10.1007/s11340-013-9819-1.
  15. Panteleyev K.V., Svistun A.I., Zharin A.L. Diagnostika lokalnykh izmeneniy plasticheskoy deformatsii po rabote vykhoda elektrona [Methods for local changes in the plastic deformation diagnostics on the work function]. Devices and methods of measurements, 2015, no. 1(10), pp. 56–63 (in Russ.).
  16. Doronin S.V., Dontsova T.V. Otsenka i regulirovanie svoystv ram karernykh samosvalov s treshchinopodobnymi defektami [Assessment and control for behavior of dump trucks frames with crack defects]. Journal of the Siberian Federal University. Engineering & technologies, 2012, vol. 5, no. 6, pp. 703–714 (in Russ.).