Smart Search 



Title of the article

TECHNIQUE OF A SETTLEMENT-EXPERIMENTAL ESTIMATION OF CORROSION-MECHANICAL STRENGTH OF TRIBO-FATIGUE SYSTEMS

Authors

Sosnovsky L.A., Doctor of Technical Sciences, Professor, Professor of the Department of "Structural mechanics", Belarusian State University of Transport, Gomel, 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.

Kozik A.N., Chief Engineer of OAO "Gomeltransneft Druzhba", Gomel, Republic of Belarus

In the section MECHANICS OF TRIBO-FATIGUE SYSTEMS
Year 2011 Issue 3 Pages 49-53
Type of article RAR Index UDK 539.43;620.16+621.644→622.692.4 Index BBK  
Abstract

It is developed two private variants of the known generalised theory of limiting conditions of tribofatigue systems: 1) for corrosion conditions energised and 2) taking into account influence of parametres of a stream of oil. According to the first model, the limiting condition of a material (by criteria of static durability or resistance of weariness) is estimated under orresponding characteristic of mechanical properties in air (strength at a stretching, an endurance limit) taking into account influence of speed of corrosion energised in the given environment. The following general law of corrosionmechanical durability is formulated: product of operating normal pressure on function of corrosion influence is size a constant for the given material in various conditions loading. On the basis of this law logarithmic function of damageability of petrowire pipes depending on operation time is constructed, according to which oil pipeline "Druzhba" pipes can be maintained safely more than 2 terms of amortisation. This conclusion is confirmed by practical operation of a linear part of oil pipeline "Druzhba". The second model essentially differs that for the first time allows to estimate the contribution of nearwall friction at movement of a stream of oil on a pipe under pressure upon change of resistance of metal of corrosionmechanical weariness.

Keywords

tribo-fatigue system, corrosion damage, corrosion-mechanical strength

  You can access full text version of the article.
Bibliography
  • Ulig G.G., Revi R.U. Korrozija i bor'ba s nej [Corrosion and struggle against it]. L., Himija, 1989. 456 p.
  • Gutman Je.M. Metallohimija metallov i zashhita ot korrozii [Metallochemisrty of metals and corrosion protection]. Moscow, Metalurgija, 1981. 271 p.
  • Shrajera L. ed. Korrozija [Corrosion]. Moscow, Metallurgija, 1981. 632 p.
  • Gerasimov V.V. Prognozirovanie korrozii metallov [Prediction of metal corrosion]. Moscow, Metallurgija, 1989. 152 p.
  • Pohmurskij V.I. Korrozionno-ustalostnaja prochnost' i metody ee povyshenija [Corrosion fatigue strength and methods of its increase]. Kiev, Navuk. dumka, 1974. 186 p.
  • Logan H.L. Korrozija metallov pod naprjazheniem [Corrosion of metals under stress]. Moscow, 1970. 404 p.
  • Azhogin F.F. Korrozionnoe rastreskivanie i zashhita vysokoprochnyh stalej [Stress corrosion cracking and protection of high-strength steels]. Moscow, 1974. 112 p.
  • Romanov V.V. Vlijanie korrozionnoj sredy na ciklicheskuju prochnost' metallov [Influence of corrosive environment on cyclic durability of metals]. Moscow, Nauka, 1969. 219 s.
  • Olejnik N.V., Magdenko A.N., Skljar S.P. Soprotivlenie ustalosti materialov i detalej mashin v korrozionnyh sredah [Fatigue resistance of materials and machine parts in corrosive environments]. Kiev, Nauk. dumka, 1987. 198 p.
  • Romaniv O.N., Nikiforchin G.N. Mehanika korrozionnogo razrushenija konstrukcionnyh splavov [Mechanics of structural damange of construction alloys ]. Moscow, Metallurgija, 1986. 294 p.
  • Karpenko G.V. Vlijanie sredy na prochnost' i dolgovechnost' metallov [Impact of environment on strength and durability of metals]. Kiev, Nauk. dumka, 1976. 128 p.
  • Sosnovskij L.A., Mahutov N.A. Korrozionno-mehanicheskaja ustalost': osnovnye zakonomernosti (obobshhajushhaja stat'ja) [Corrosion-mechanical fatigue: basic laws (generalizing article)]. Zavodskaja laboratorija. Diagnostika materialov [Factory laboratory. Diagnosis materials], 1993, no. 7, pp. 33-44.
  • Sosnovskij L.A. Mehanika iznosoustalostnogo povrezhdenija [Mechanics of wear fatigue damage]. Gomel, BelGUT, 2007. 434 p.
  • Bogdanovich A.V. Prognozirovanie predel'nyh sostojanij silovyh sistem [Prediction of limit states of power systems]. Grodno, GrGU im. Ja. Kupaly, 2008. 372 p.
  • Zhurkov S.N. Kineticheskaja koncepcija prochnosti tverdyh tel [Kinetic concept of strength of solids]. Vestn. AN SSSR [News of the AS of USSR], 1968, no. 3, pp. 46-52.
  • Cherepanov G. P. Mehanika razrushenija i kineticheskaja teorija prochnosti [Fracture mechanics and kinetic theory of strength]. Problemy prochnosti [Problems of strength], 1989, no. 11, pp. 3-8.
  • Zhurkov S.N. Dilatonnyj mehanizm prochnosti tverdyh tel [Dilaton mechanism of solids strength]. Fizika prochnosti i plastichnosti [Physics of strength and plasticity]. L., Nauka, 1986, pp. 5-11.
  • Sosnovskij L.A., Kostjuchenko A.A., Vorob'ev V.V. Inzhenernaja model' korrozionno-mehanicheskoj prochnosti [Engineering model of corrosion-mechanical strength]. Ves. NANB. Ser. fiz.-tjehn. navuk [Journal of the NAS of Belarus. Series of physical-technical sciences], 2008, no. 2, pp. 66-70.
  • Injushin N.V. [et al.]. Korrozija vnutrennej poverhnosti neftesbornyh promyslovyh truboprovodov [Corrosion of inner surface of oil-gathering flowlines]. Neftjanoe hozjajstvo [Oil industry], 2002, no. 3, pp. 85-86.
  • Andriashin V.A. [et al.]. Long-Term Inside Corrosion Attack of an Oil Main Operation. Protectionofmetals, 2006, vol. 42, no. 1, pp. 46-50.