Forecasting the endurance limit of surface-hardened cylindrical parts made of steel 20 by the initial deformations of reference specimen

Cite item

Full Text


The possibility of forecasting the increment of endurance limit for solid and hollow cylindrical parts made of steel 20 with semicircular notches after outstripping superficial plastic deforming has been analyzed using the residual stresses (initial deformations) of a reference specimen hardened simultaneously with the part . It is established that the compressive residual stresses calculated in smooth parts by the initial deformations of the reference specimen differ insignificantly (less than 6%) from those found experimentally. The increments of endurance limits of hardened notched parts have been calculated by a well-known method using the average integral residual stresses criterion. It’s established that the design values of endurance limit increments differ from the experimentally found ones by no more than 15%.

About the authors

V. P. Sazanov

Samara State Aerospace University

Author for correspondence.

Candidate of Science (Engineering), Associate Professor

Department of Strength of Materials

Russian Federation


  1. Smaglenko F.P. The influence of residual stresses distribution on the fatigue strength of solid alloy BK15 // Strength problems. 1980. №8. P. 35-38. (In Russ.)
  2. Torbilo V.M., Markus L.I. Residual stresses in the hardened steel surface layer after diamond smoothing // Vestnik mashinostroeniya. 1969. №6. P. 44-45. (In Russ.)
  3. Turovskiy M.L., Novik R.A. Hardening rolling of nitrated steel parts // Vestnik mashinostroeniya. 1970. №1. P. 39-42. (In Russ.)
  4. Pavlov V.F. Connection between residual stresses and endurance limit under bending under stresses concentration conditions // Izvestiya vusov. Mashinostroenie. 1986. №8. P. 29-32.
  5. Pavlov V.F. The influence of the value and distribution of residual stresses in a the surface layer of a part with a concentrator on the endurance limit. Report 1. Solid parts // Izvestiya vusov. Mashinostroenie. 1988. №8. P. 22-26. (In Russ.)
  6. Pavlov V.F. The influence of the value and distribution of residual stresses in a the surface layer of a part with a concentrator on the endurance limit. Report 2. Hollow parts // Izvestiya vusov. Маshinostroenie. 1988. №12. P. 37-40. (In Russ.)
  7. Ivanov S.I., Pavlov V.F., Konovalov G.V., Minin V.B. Tekhnologicheskie ostatochnye napryazheniya i soprotivlenie ustalosti aviatsionnykh rezbovykh detaley [Technological residual stresses and fatigue resistance of aircraft thread pieces]. Moscow: Sectoral library “Technical progress and qualification improvement” MAP, 1992. 192 p.
  8. Radchenko V.P., Afanaseva O.S. Calculation procedure of a fatique point for strengthened cylindrical specimen with pressure concentrators at temperature endurances in the creep conditions // Vestnik SamGTU. Ser. fiz.-mat. nauki. 2009. №2 (19). P. 264-268. (In Russ.)
  9. Pavlov V.F., Kirpichev V.A., Vakulyuk V.S. Prognozirovanie soprotivleniya ustalosti poverkhnostno uprochnennykh detaley po ostatochnym napryazheniyam [Forecasting the fatigue resistance of surface-hardened parts by residual stresses]. Samara: SNC RAN Publ., 2012. 125 p.
  10. Vakulyuk V.S. The dependence of detail fatigue resistance on the thickness of hardening layer under outstripping superficial plastic deforming // Vestnik SGAU. 2012. № 3(34). Part 3. P. 172-176. (In Russ.)
  11. Kirpichev V.A., Saushkin M.N., Sazanov V.P., Semenova O.Yu. Residual stresses and endurance strength in the specimens with v-shaped notches made of внс40 steel // Vestnik SGAU. 2012. №5 (36). Part 1. P. 95-99. (In Russ.)
  12. Ivanov S.I. Determination of residual stresses in a cylinder by the rings-and-stripes method // Ostatochnye napryazheniya. Kuibyshev: KuAI Publ., 1971. Issue 53.
  13. P. 32-42. (In Russ.)
  14. Birger I.A. Ostatochnye napryazheniya [Residual stresses]. Moscow: Маshgiz Publ., 1963. 232 p.
  15. Struzhanov V.V. About residual stresses after rolling and exfoliation of two-ply stripe // Vestnik SamGTU. Ser. fiz.-mat. nauki. 2010. №5(21). P. 55-63. (In Russ.)
  16. Chirkov A.V., Sazanov V.P., Samoylov V.A., Larionova Yu.S. Modeling of redistribution of residual stresses in the cylindrical specimens after advancing surface plastic forming // Vestnik SGAU. 2011. №3(27). Part 3. P. 171-174. (In Russ.)
  17. Pavlov V.F., Stolyarov A.K., Vakulyuk V.S., Kirpichev V.A. Raschet ostatochnykh napryazheniy v detalyakh s kontsentratorami napryazheniy po pervonachalnym deformatsiyam. [Calculation of residual stresses in parts with stress concentrators by initial deformations]. Samara: SNC RAN Publ., 2008. 124 p.
  18. Vakulyuk V.S. Investigation of influence of thickness hardened layer on the residual stresses in basin concentrator using initial strain // Vestnik SamGTU. Ser. fiz.-mat. nauki. 2010. №1(20). P. 222-225. (In Russ.)
  19. Saushkin M.N., Radchenko V.P., Pavlov V.F. Method of calculating the fields of residual stresses and plastic strains in cylindrical specimens with allowance for surface hardening anisotropy // Journal of Applied Mechanics and Technical Physics. 2011. V. 52, №2. P. 303-310. doi: 10.1134/s0021894411020180
  20. Ivanov S.I., Shatunov M.P., Pavlov V.F. The influence of residual stresses on the endurance of notched specimens // Voprosy prochnosti elementov aviatsionnykh konstruktsiy. Kuibyshev: KuAI Publ., 1974. Issue 3. P. 88-95. (In Russ.)
  21. Kirpichev V.A., Filatov A.P., Karanaeva O.V., Chirkov A.V., Semenova O.Yu. Forecasting the endurance limit of surface-hardened parts with concentration of various degree // International Scientific Technical Conference Transactions “Strength of materials and structural elements”. Kiev: the G.S. Pisarenko Strength Problems Institute of the Ukraine Academy of Sciences, 2011. P. 678-685. (In Russ.)
  22. Peterson R.Е. Koeffitsienty kontsentratsii napryazheniy [Stress concentration coefficients]. Мoscow: Publishing House «МIR», 1977. 304 p.

Supplementary files

Supplementary Files

Copyright (c) 2015 VESTNIK of the Samara State Aerospace University

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies