Fatigue life of steel VKS-9 in conditions of symmetric loading «tension–compression» and «bending with rotation»

Grinevich A.V., Erasov V.S., Yakusheva N.A., Terekhin A.L.
UDC
620.178.35
DOI
10.18577/2307-6046-2017-0-9-11-11
Article PDF (Russian) (769.92 KB)
How to cite
Grinevich A.V., Erasov V.S., Yakusheva N.A., Terekhin A.L. Fatigue life of steel VKS-9 in conditions of symmetric loading «tension–compression» and «bending with rotation» // Proceedings of VIAM. 2017. No. 9. DOI: 10.18577/2307-6046-2017-0-9-11-11. URL: https://test.viam.ru/en/journal/2017/9/11
Keywords
high-strength steel, fatigue tests, brittle fracture, fatigue limits, cyclic loading, pure bending with rotation
Abstract

The article presents the results of fatigue tests of high-strength steel VKS-9, designed for use in aircraft landing gears and other highly loaded parts of aircraft. Illustrated the main difficulty in the development of high strength steels, due to the fact that the bearing capacity of structures with stress concentrators is significantly below the tensile strength, determined on a standard sample. Along with the assessment of the resistance of material to brittle fracture criterion for fatigue failure is also the basis of determining the bearing capacity. Domestic practice test for fatigue based on the loading scheme «bending and rotation». American reference books provide data on fatigue when tested according to the scheme of loading «expansion-compression». For a correct comparison of fatigue data on comparative testing of high strength steel VKS-9 at various schemes of loading. It is established that the limits of fatigue on the bases 104–106 when tested by loading the «bending-rot

Reference list
  1. Serensen S.V. Soprotivlenie materialov ustalostnomu i hrupkomu razrusheniyu [Resistance of materials to fatigue and brittle failure]. M.: Atomizdat, 1975. 192 s.
  2. Uzhig G.V. Prochnost v mashinostroenii [Durability in mechanical engineering]. M.: Mashinostroenie, 1958. 68 s.
  3. Peterson R. Koefficienty koncentracii napryazhenij [Factors of concentration of tension]. M.: Mir, 1977. 302 s.
  4. Bojcov B.V. Nadezhnost shassi samoleta [Reliability of the chassis of airplane]. M.: Mashinostroenie, 1976. 216 s.
  5. Odesskij P.D., Shuvalov A.N., Emelyanov O.V. Ocenka soprotivleniya zarozhdeniyu ustalostnyh treshhin v svarnyh soedineniyah stalnyh konstrukcij [Assessment of resistance to origin of fatigue cracks in welded connections of steel designs] // Deformaciya i razrushenie. 2016. №9. S. 30–35.
  6. Panin V.E., Kablov E.N., Pleshakov V.S. i dr. Vliyanie ultrazvukovoj udarnoj obrabotki na strukturu i soprotivlenie ustalosti svarnyh soedinenij vysokoprochnoj stali VKS-12 [Influence of ultrasonic shock processing on structure and resistance of fatigue of welded compounds of VKS-12 high-strength steel] // Fizicheskaya mezomehanika. 2006. T. 9. №2. S. 85–96.
  7. Panin V.E., Kablov E.N., Pochivalov Yu.I., Panin S.V., Kolobnev N.I. Vliyanie nanostrukturirovaniya poverhnostnogo sloya alyuminij-litievogo splava 1424 na mehanizmy deformacii, tehnologicheskie harakteristiki i ustalostnuyu dolgovechnost [Influence of nanostructuring surface layer aluminum-lithium alloy 1424 on deformation mechanisms, technical characteristics and fatigue life] // Fizicheskaya mezomehanika. 2012. T. 15. №6. S. 107–111.
  8. Gerov M.V., Vladislavskaya E.Yu., Terentev V.F. i dr. Issledovanie ustalostnoj prochnosti splava Ti–6Al–4V, poluchennogo metodom selektivnogo lazernogo plavleniya [Research of fatigue resistance of alloy of Ti–6Al–4V received by method of the selection laser melting] // Deformaciya i razrushenie. 2016. №5. S. 14–20.
  9. Belyaev M.S., Gorbovec M.A. O razryve krivyh malociklovoj ustalosti zharoprochnogo nikelevogo splava [About discontinuity of LCF diagram in S-N coordinates for Ni-based superalloy] // Aviacionnye materialy i tehnologii. 2014. №S4. S. 103–108. DOI: 10.18577/2071-9140-2014-s4-103-108.
  10. Grinevich A.V., Rumyancev Yu.S., Morozova L.V., Terehin A.L. Issledovanie ustalostnoj dolgovechnosti alyuminievyh splavov 1163-T i V95o.ch.-T2 posle poverhnostnogo uprochneniya [Study of fatigue life of 1163-T and V95o.ch.-T2 aluminum alloys after surface hardening] // Aviacionnye materialy i tehnologii. 2014. №S4. S. 93–102. DOI: 10.18577/2071-9140-2014-s4-93-102.
  11. Kablov E.N., Morozova L.V., Grigorenko V.B., Zhegina I.P., Fomina M.A. Issledovanie vliyaniya korrozionnoj sredy na process nakopleniya povrezhdenij i harakter razrusheniya konstrukcionnyh alyuminievyh splavov 1441 i V-1469 pri ispytaniyah na rastyazhenie i malociklovuyu ustalost [Research of influence of the corrosion environment on process of accumulation of damages and nature of destruction of structural aluminum alloys 1441 and V-1469 at tension tests and low-cyclic fatigue] // Materialovedenie. 2017. №1. S. 41–48.
  12. Pisarev V.S., Matvienko Yu.G., Eleonskij S.I., Odincev I.N. Vliyanie malociklovoj ustalosti na parametry mehaniki razrusheniya po dannym metoda spekl-interferometrii [Influence of low-cyclic fatigue on fracture mechanics parameters according to speckle interferometry method] // Zavodskaya laboratoriya. Diagnostika materialov. 2016. №6. S. 44–56.
  13. Metallic Materials Properties Development and Standardization (MMPDS). Federal Aviation Administration, 2005. Р. 2-59–2-62.
  14. Kablov E.N. Innovacionnye razrabotki FGUP «VIAM» GNC RF po realizacii «Strategicheskih napravlenij razvitiya materialov i tehnologij ih pererabotki na period do 2030 goda» [Innovative developments of FSUE «VIAM» SSC of RF on realization of «Strategic directions of the development of materials and technologies of their processing for the period until 2030»] // Aviacionnye materialy i tehnologii. 2015. №1 (34). S. 3–33. DOI: 10.18577/2071-9140-2015-0-1-3-33.
  15. Bojcov B.V., Kishkina S.I., Kravchenko G.N. i dr. Dolgovechnost' sharnirno-boltovyh soedinenij letatelnyh apparatov [Durability of sharnirno-bolted connections of flight vehicles]. M.: Mashinostroenie, 1996. 256 s.
  16. Terentev V.F., Petuhov A.N. Ustalost vysokoprochnyh metallicheskih materialov [Fatigue of high-strength metal materials]. M.: CIAM, 2013. 515 s.
  17. Kuzmin O.V., Tihomirova E.A., Sundukov M.Yu., Azizov G.N., Sidohin E.F. Novyj sposob termociklicheskih ispytanij soprotivleniya materiala termicheskoj ustalosti v aviacionnom proizvodstve [A new thermo-cyclic testing method to measure thermal fatigue resistance of materials in aeronautical engineering] // Aviacionnye materialy i tehnologii. 2013. №4. S. 51–53.
  18. Muravev V.V., Muraveva O.V. Ocenka rosta ustalostnyh treshhin v bokovyh ramah telezhek gruzovyh vagonov akustiko-emissionnym metodom [Assessment of growth of fatigue cracks in side frames of carts of freight cars acoustic-emission method] // Deformaciya i razrushenie. 2016. №9. S. 24–29.
  19. Belyaev M.S., Terentev V.F., Gorbovec M.A., Bakradze M.M., Goldberg M.A. Malociklovaya ustalost pri zadannoj deformacii i parametry uprugoplasticheskogo deformirovaniya zharoprochnogo splava VZh175 [Low-cycle fatigue for a given deformation and parameters of elastic-plastic deformation of superalloy VZh175] // Aviacionnye materialy i tehnologii. 2014. №S4. S. 87–92. DOI: 10.18577/2071-9140-2014-0-s4-87-92.