Advertisement

Materials Science

, Volume 55, Issue 2, pp 175–180 | Cite as

Anisotropy of the Mechanical Properties of Thermally Hardened A500s Reinforcement

  • Ya. Z. Blikhars’kyiEmail author
Article
  • 4 Downloads

We study the distribution of microhardness of a rebar 20 mm in diameter made of A500S steel in the radial direction and determine the thickness of thermally hardened layer. To estimate the anisotropy of strength and plasticity characteristics over the thickness of the rebar, we use tubular specimens whose working part contains either solely the hardened layer of the rebar or only the core material. We also construct the engineering and true stress-strain diagrams in tension. It is demonstrated that the mechanical characteristics of the material of the surface layer of rebar strongly differ from the characteristics of its core material.

Keywords

A500S rebar thermally hardened layer core mechanical properties tubular specimens 

References

  1. 1.
    T. Bobalo, Y. Blikharskyy, R. Vashkevich, and M. Volynets, “Bearing capacity of RC beams reinforced with high strength rebars and steel plate,” in: MATEC Web of Conf.,230 (2018), p. 02003.CrossRefGoogle Scholar
  2. 2.
    J. Selejdak, R. Khmil, and Z. Blikharskyy, “The influence of simultaneous action of the aggressive environment and loading on strength of RC beams,” in: MATEC Web of Conf.,183 (2018), p. 02002.CrossRefGoogle Scholar
  3. 3.
    B. Pradhan and B. Bhattacharjee, “Rebar corrosion in chloride environment,” Constr. Build. Mater.,25, No. 5, 2565–2575 (2011).CrossRefGoogle Scholar
  4. 4.
    Ž. Kos, L. Gotal, and E. Klimenko, “Developing a model of a strain (deformation) of a damaged reinforced concrete pillar in relation to a linear load capacity,” Tehnički Glasnik,11, No. 4, 150–154 (2017).Google Scholar
  5. 5.
    Z. Ya. Blikhars’kyi and Y. V. Obukh, “Influence of the mechanical and corrosion defects on the strength of thermally hardened reinforcement of 35GS steel,” Fiz.-Khim. Mekh. Mater.,54, No. 2, 128–133 (2018); English translation:Mater. Sci.,54, No. 2, 128–133 (2018).CrossRefGoogle Scholar
  6. 6.
    P. Krainskyi, Y. Blikharskyy, R. Khmil, and Z. Blikharskyy, “Experimental study of the strengthening effect of reinforced concrete columns jacketed under service load level,” in: MATEC Web of Conferences,183 (2018), p. 02008.CrossRefGoogle Scholar
  7. 7.
    P. Krainskyi, Y. Blikharskyy, R. Khmil, and P. Vegera, “Influence of loading level on the bearing capacity of RC columns strengthened by jacketing,” in: MATEC Web of Conf.,230 (2018), p. 02013.CrossRefGoogle Scholar
  8. 8.
    K. Brózda, J. Selejdak, and P. Koteš, “The analysis of beam reinforced with FRP bars in bending,” Procedia Eng.,192, 64–68 (2017).CrossRefGoogle Scholar
  9. 9.
    R. Khmil, R. Tytarenko, Y. Blikharskyy, and P. Vegera, “Development of the procedure for the estimation of reliability of reinforced concrete beams strengthened by building up the stretched reinforcing bars under load,” East.-Europ. J. Enterprise Technol.,95, No. 5/7, 32–42 (2018).CrossRefGoogle Scholar
  10. 10.
    Z. Blikharskyy, R. Khmil, and P. Vegera, “Shear strength of reinforced concrete beams strengthened by P.B.O. fiber mesh under loading,” in: MATEC Web of Conf.,116 (2017), p. 02006.CrossRefGoogle Scholar
  11. 11.
    P. Vegera, R. Vashkevych, and Z. Blikharskyy, “Fracture toughness of RC beams with different shear span,” in: MATEC Web of Conf.,174 (2018), p. 02021.CrossRefGoogle Scholar
  12. 12.
    Z. Blikharskyy, P. Vegera, R. Vashkevych, and T. Shnal, “Fracture toughness of RC beams on the shear, strengthening by FRCM system,” in: MATEC Web of Conf.,183 (2018), p. 02009.CrossRefGoogle Scholar
  13. 13.
    A. Kramarchuk, B. Ilnytskyy, O. Lytvyniak, and A. Grabowski, “The increase of seismic stability for existing industrial buildings,” in: AIP Conf. Proc.,2077 (2019), p. 020029.Google Scholar
  14. 14.
    J. Cairns, G. A. Plizzari, Y. Du, D. W. Law, and C. Franzoni, “Mechanical properties of corrosion-damaged reinforcement,” ACI Mater. J.,102, No. 4, 102–129 (2005).Google Scholar
  15. 15.
    M. M. Rafi, S. H. Lodi, and A. Nizam, “Chemical and mechanical properties of steel rebars manufactured in Pakistan and their design implications,” J. Mater. Civil Eng.,26, No. 2, 338–348 (2014).CrossRefGoogle Scholar
  16. 16.
    Q. Zhang, Yu. V. Mol’kov, Yu. М. Sobko, and Ya. Z. Blikhars’kyi, “Determination of the mechanical characteristics and specific fracture energy of thermally hardened reinforcement,” Fiz.-Khim. Mekh. Mater.,50, No. 6, 50–54 (2014); English translation:Mater. Sci.,50, No. 6, 824–829 (2015).CrossRefGoogle Scholar
  17. 17.
    Y. Du, Yu. V. Mol’kov, Т. М. Lenkovs’kyi, and R. А. Koval’chuk, “Analysis of the stress-strain state of the process zone of a plate with central crack under biaxial loading,” Fiz.-Khim. Mekh. Mater.,53, No. 1, 78–83 (2017); English translation:Mater. Sci.,53, No. 1, 86–92 (2017).CrossRefGoogle Scholar
  18. 18.
    Ya. L. Ivanyts’kyi, S. T. Shtayura, Yu. V. Mol’kov, and T. M. Lenkovs’kyi, “Influence of hydrogen on the fracture resistance of 65G sheet steel,” Fiz.-Khim. Mekh. Mater.,47, No. 4, 36–40 (2011); English translation:Mater. Sci.,47, No. 4, 457–461 (2012).CrossRefGoogle Scholar
  19. 19.
    Ya. L. Ivanyts’kyi, Yu. V. Mol’kov, P. S. Kun, T. M. Lenkovs’kyi, and M. Wójtowicz, “Determination of the local strains nearstress concentrators by the digital image correlation technique,” Fiz.-Khim. Mekh. Mater.,50, No. 4, 8–24 (2014); English translation:Mater. Sci.,50, No. 4, 488–495 (2015).CrossRefGoogle Scholar
  20. 20.
    Ya. L. Ivanyts’kyi, S. T. Shtayura, T. M. Lenkovs’kyi, and Yu. V. Mol’kov, “Determination of the parameters of crack resistance for 17G1S steel under transverse shear,” Fiz.-Khim. Mekh. Mater.,49, No. 5, 73–78 (2013); English translation:Mater. Sci.,49, No. 5, 637–643 (2014).CrossRefGoogle Scholar
  21. 21.
    V. F. Terent’ev, Fatigue of Metal Materials [in Russian], Nauka, Moscow (2003).Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.“L’vivs’ka Politekhnika” National UniversityLvivUkraine

Personalised recommendations