The Parametric Study of the Crack Growth in the Lubricated Rolling-Sliding Contact Problems

Roki Potočnik; Jože Flašker; Bostjan Zafošnik; Srečko Glodež

doi:10.4028/www.scientific.net/KEM.348-349.689

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 348-349The Parametric Study of the Crack Growth in the...

The Parametric Study of the Crack Growth in the Lubricated Rolling-Sliding Contact Problems

Abstract:

A two-dimensional numerical model is used to describe the crack path in the lubricated rolling-sliding contact problems. The model assumes that the crack is initiated in a pre-existing micro pit, which resulted from the crack growth on the surface of a gear tooth flank. The lubricated rolling-sliding contact problem is modelled using the Hertz theory of contact, the Coulomb's law of friction and hydraulic pressure mechanism with constant pressure which simulates the effect of lubricant trapped into the crack. Different load cases are used to simulate the moving of a contact load. The crack propagation path is evaluated by a maximum tangential stress criterion and modified maximum tangential stress criterion which considers the stress intensity factors KI and KII, the T-stress, the critical distance ahead the crack tip rc, and the stress on the crack surfaces. The computational results show that the consideration of the T-stress has a significant influence on the crack path in the lubricated rolling-sliding contact problems.

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Periodical:

Key Engineering Materials (Volumes 348-349)

Pages:

689-692

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.348-349.689

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Online since:

September 2007

Authors:

Roki Potočnik, Jože Flašker, Bostjan Zafošnik, Srečko Glodež

Keywords:

Contact Problems, Crack Growth, Fatigue, Numerical Analysis, Pitting

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References

[1] F. Erdogan and G.C. Sih: On the crack extension in plates under plate loading and transverse shear. ASME Journal of Basic Engineering, Vol. 85 (1963), pp.525-527.

DOI: 10.1115/1.3656899

Google Scholar

[2] P. Partheymüller: Numerical simulation of the 3D crack propagation with the boundary element method (VDI Verlag, Germany 1999), (In German).

Google Scholar

[3] A. Seweryn: A non-local stress and strain energy release rate mixed mode fracture initiation and propagation criteria. Engineering Fracture Mechanics, Vol. 59 (1998), pp.737-760.

DOI: 10.1016/s0013-7944(97)00175-6

Google Scholar

[4] M.L. Williams: On the stress distribution at the base of a stationary crack. Journal of Applied Mechanics, Vol. 24 (1957), pp.109-114.

Google Scholar

[5] B. Zafošnik, Z. Ren, J. Flašker and G. Mishuris: Modelling of surface crack growth under lubricated rolling-sliding contact loading. International Journal of Fracture, Vol. 134 (2005).

DOI: 10.1007/s10704-005-8546-8

Google Scholar