Advertisement

Method for Detecting Fatigue Damage to Bridges by Analyzing Dissipative Processes in Metals Under Periodic Loading

  • Leonid SolovyevEmail author
  • Alexander Solovyev
Conference paper
  • 45 Downloads
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 1116)

Abstract

The purpose of the work is to study the main parameters of energy dissipation in metals under periodic loads in order to detect fatigue cracks in the metal structures of railway bridges. The method of research is the method of infrared thermography. The objects of study are fatigue cracks. Dynamic tests of a beam with a fatigue crack in the loading ranges corresponding to real loading of span structures in terms of frequencies and amplitudes of oscillations were carried out. To study the influence of measurement conditions, measurements were taken at different distances from the infrared detector to the beam surface, with different recording lengths corresponding to the train passing time over the bridge, at different frequencies and oscillation amplitudes. For processing thermograms, a special technique and software are developed. As a result of the study, it was established that in all loading modes, the tip of the fatigue crack, which has an increased heat emission compared with the surrounding surface of the beam, is recognized uniquely and confidently by infrared thermography. With short recordings, the influence of environmental conditions is minimized. The developed method of processing thermograms, based on the integration of temperature increments under cyclic loading, makes it possible to completely eliminate the influence of extraneous factors.

Keywords

IR-thermography Fatigue cracks Steel bridges 

References

  1. 1.
    Instructions for inspection and reinforcement of operated welded span structures. USSR Ministry of Railways, Moscow (1990). 25 p.Google Scholar
  2. 2.
    Korneev, M.M.: Steel Bridges. Theoretical and Practical Guide to the Design of Bridges, vol. 1. Academic Press Publishing House, Kiev (2010). 532 p.Google Scholar
  3. 3.
    Wolchuk, R.: Discussion of “consistent approach to calculating stresses for fatigue design of welded rib-to-web connections in steel orthotropic bridge decks” by Robert J. Connor and John W. Fisher. J. Bridge Eng. ASCE 12(6), 811 (2007)CrossRefGoogle Scholar
  4. 4.
    Bokarev, S.A.: Features and prospects for assessing the residual life of welded metal span structures of railway bridges. Bull. Siberian State Univ. Commun. 1(40), 30 (2017)Google Scholar
  5. 5.
    Vavilov, V.P.: Thermal Imagers and Their Applications. Intel Universal, Moscow (2002). 87 p.Google Scholar
  6. 6.
    Kurylenko, G.A.: Investigation of the damageability of metals by the thermodynamic method. Proc. Tomsk Polytech. Univ. 326(3), 105 (2015)Google Scholar
  7. 7.
    Solovyev, L.Yu.: Remote control of fatigue cracks in metal span structures of bridges. In: Transport Infrastructure of the Siberian Region: Materials of the Eighth International Scientific-Practical Conference, March 28–April 1 2017, Irkutsk: in 2 vol., Irkutsk: IrGUPS, v. 1, p. 469 (2017)Google Scholar
  8. 8.
    Thompson (Lord Kelvin): On the dynamical theory of heat. Trans. Roy. Soc. Edinburgh 20, 261 (1853)Google Scholar
  9. 9.
    Kurylenko, G.A.: Experimental determination of the intensity of the heat source in the center of the development of damage during cyclic loads. News Tomsk Polytech. Univ. 322(2), 164–166 (2013)Google Scholar
  10. 10.
    Sakagami, T.: Application of infrared thermography to structural integrity evaluation of steel bridges. J. Mod. Opt. 57(18), 1738 (2010)CrossRefGoogle Scholar
  11. 11.
    Sakagami, T.: TSA based evaluation of fatigue crack propagation in steel bridge member. Procedia Struct. Integrity 5, 1370 (2017)Google Scholar
  12. 12.
    Sieber, L.: Crack-detection in old riveted steel bridge structures. Procedia Struct. Integr. 17, 339 (2019)CrossRefGoogle Scholar
  13. 13.
    Bondar, N.G., Kazey, I.N.: Dynamics of Railway Bridges. Transport, Moscow (1965). 411 p.Google Scholar
  14. 14.
    Kruglov, V.M.: About the design of bridges on the high-speed railway lines of Russia. Internet-Mag. “Naukovedenie” 5(24), 1–8 (2014). https://naukovedenie.ru/PDF/34KO514.pdfGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Research Laboratory “Bridges”Siberian Transport UniversityNovosibirskRussia

Personalised recommendations