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Experimental Study on Fatigue Crack Initiation and Propagation due to Fretting Damage in Press-fitted Shaft

압입축에 발생하는 프레팅 피로균열 발생 및 진전 특성 실험

  • 이동형 (한국철도기술연구원) ;
  • 권석진 (한국철도기술연구원 철도시스템안전연구본부) ;
  • 최재붕 (성균관대학교 기계공학부) ;
  • 김영진 (성균관대학교 기계공학부)
  • Published : 2007.06.01

Abstract

To clarify the characteristics of surface damage due to fretting in press-fitted shaft, experimental methods were applied to small scale specimen with different bending load condition. Fatigue tests and interrupted fatigue tests of press-fitted specimen were carried out by rotate bending fatigue test. Macroscopic and microscopic characteristics were examined using scanning electron microscope (SEM), optical microscope or profilometer. It is found that small fatigue cracks are nucleated early in life regardless of bending stress, and thus the most portion of fatigue life on press fits can be considered to be crack propagation process. Most of surface cracks are initiated near the contact edge, and multiple cracks are nucleated and interconnected. Furthermore, the fretting wear rates at the contact edge are increased rapidly at the initial stage of total fatigue life. It is thus suggested that the fatigue crack nucleation and propagation process is strongly related to the evolution of surface profile by fretting wear in press fits.

Keywords

References

  1. Waterhouse, R. B., 1992, 'Fretting fatigue,' International materials reviews, Vol 37, No. 2, pp. 77-97 https://doi.org/10.1179/imr.1992.37.1.77
  2. Kuhnel, R., 1932, Glasers Annln, Gewerbe Bauw, Vol. 110 PT, pp. 41-52
  3. Horger, O. J.,1952, 'Influence of Fretting Corrosion on the Fatigue Strength of Fitted Members,' ASTM STP144, pp. 40-51
  4. Maxwell, W., Dudley, B. R., Cleary, A. B., Richards, J. and Shaw, J., 1967-68, 'Measures to Counter Fatigue Failure in Railway Axles,' Proc. Inst. Mech. Engrs, Vol. 182, Pt. 1, No. 4, pp. 89-99
  5. Nishioka, K. and Komatshu, K., 1967, 'Study on the means for Improvement in Fatigue Strength of press-fitted axles,' Trans. Jpn. Soc. Mech. Eng., Vol. 33, No. 248, pp. 503-511 (In Japanese) https://doi.org/10.1299/kikai1938.33.503
  6. Tanaka, S. I.,. Hatsuno, K., Mori, B. and Yaguchi, S., 1975, 'Fretting Corrosion and Fatigue Strength for Wheel-seat of Car-Axle - Test Results of Full Size Wheel Axle Testing Machine - (Report 1),' Railway Technical Research Report, No. 955 (In Japanese)
  7. Ishizuka, H., Akama, M., Hanaoka, T., Satoh, Y., Motomatsu, H. and Tezuka, K., 1995, 'Fracture Mechanics Evaluation of Fatigue Tests Using Shinkansen Vehicle Axles with Artificial Flaws on Their Wheelseats,' RTRI Report, Vol. 9, No. 6, pp. 25~30 (In Japanese)
  8. Akama, M., 2002, 'Bayesian Analysis for the Results of Fatigue Test Using Full-Scale Models to Obtain the Accurate Failure Probabilities of the Shinkansen Vehicle Axle,' Reliability Engineering & System Safety, Vol. 75, pp. 321-332 https://doi.org/10.1016/S0951-8320(01)00129-6
  9. Lonsdale, C. and Stone, D., 2004, 'North American Axle Failure Experience,' Proc. Instn Mech. Engrs Part F, J. Rail and Rapid Transit, Vol. 218, No.4, pp. 293-298 https://doi.org/10.1243/0954409043125941
  10. Hirakawa, K., Toyama, K. and Kubota, M., 1998, 'The Analysis and Prevention of Failure in Railway Axles,' Int. J. Fatigue, Vol. 20, No. 2., pp. 135-144 https://doi.org/10.1016/S0142-1123(97)00096-0
  11. Ugural, A.C. and Fenster, S.K., 1995, Advanced Strength and Applied Elasticity, 3rd Ed., Prentice-Hall, pp. 328-338
  12. Dowling, N. E., 1999, Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, 2nd Edition, Prentice Hall, pp. 420-434
  13. Waterhouse, R. B. and Taylor, D. E., 1971, 'The Initiation of Fatigue Cracks in a 0.7% Carbon Steel by Fretting,' Wear, Vol. 17, pp. 139-147 https://doi.org/10.1016/0043-1648(71)90024-X
  14. Waterhouse, R. B., 1981, Fretting fatigue, London, Applied Science Publishers
  15. Sato, K., 1988, 'Damage Formation During Fretting Fatigue,' Wear, Vol. 125, pp. 163-174 https://doi.org/10.1016/0043-1648(88)90200-1
  16. Vingsbo, O. and Soderberg, S., 1988, 'On Fretting Maps,' Wear, Vol. 126, pp. 131-147 https://doi.org/10.1016/0043-1648(88)90134-2
  17. B.H. Lee and S.B. Lee, 1997, 'An Experimental Study on the Fretting Fatigue Crack Behaviour of Al2024-T4,' Transactions of the KSME (A), Vol. 21, No.3, pp. 511-519 (In Korean)

Cited by

  1. Evaluation of Fatigue Crack Initiation Life in a Press-Fitted Shaft Considering the Fretting Wear vol.33, pp.10, 2009, https://doi.org/10.3795/KSME-A.2009.33.10.1091