Effect of Lubricant on Surface Rolling Contact Fatigue Cracks

Abstract:

This study performed the finite element analysis of the cycle of stress intensity factors at the surface initiated rolling contact fatigue crack tip under Hertzian contact stress including an accurate model of friction between the faces of the crack and the effect of fluid inside the crack. A two-dimensional model of a rolling contact fatigue crack has been developed with FRANC-2D software. The model includes the effect of Coulomb friction between the faces of the crack. The fluid in the crack was assumed not only to lubricate the crack faces and reduce the crack face friction coefficient but also to generate a pressure.

• Periodical: Advanced Materials Research (Volumes 97-101)
• Pages: 793-796
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.97-101.793
• Online since: March 2010
• Authors: Khalil Farhangdoost, Mohammad Kavoosi
• Keywords: Contact Fatigue, Crack, Lubricant

References

[1] A. D. Hearle and Johnson: Mode II stress intensities for a crack parallel to the surface of an iiiiiiElastic Half-space subjected to a moving point load, journal of the mechanics and physics, Vol. iiiiii33 (1985), p.61.

DOI: 10.1016/0022-5096(85)90022-5

[2] S. Sheppard and S. Barber: Short sub-surface cracks under conditions of slip and stick caused by a moving compressive load, ASME Journal of Applied Mechanics, Vol. 52 (1985), p.811.

DOI: 10.1115/1.3169151

[3] M. Kaneta and Y. Murakami: Tribol. Int. Vol. 20 (1987), p.210.

[4] A.F. Bower: The influence of crack face friction and trapped fluid on surface initiated rolling iiiiiicontact fatigue cracks, Cambridge university, CUED/Mech/41. (1987).

DOI: 10.1115/1.3261717

[5] O. P. Datsyshyn and V.V. Panasyuk: Pitting of the rolling bodies contact surface, Karpenko iiiiiiPhysico-Mechanical Institute, National Academy of Sciences of Ukraine, 5 Naukova St., 79601 iiiiiiLviv, Ukraine, Wear 251 (2001), p.1347.

DOI: 10.1016/s0043-1648(01)00771-2