Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Three-Dimensional Fracture Mechanics Analysis of Pit ormation Mechanism Under Lubricated Rolling-Sliding Contact Loading

Three-Dimensional Fracture Mechanics Analysis of Pit ormation Mechanism Under Lubricated... The mechanism of so-called arrow headed pit formation on contact surfaces under lubricated rolling-sliding cyclic contact loading was analyzed by fracture mechanics. The stress intensity factors of Modes I, II and III for an arrow-headed crack were calculated by three-dimensional numerical analysis. The analytical results support the hypothesis that an arrow headed crack in pitting phenomenon first propagates in shear mode, and that crack growth by tensile mode follows due to a hydraulic effect on crack faces by the oil that has penetrated into the crack. The analysis predicts that the values of contact pressure and frictional force dominantly determine the final surf ace apex angle of an arrow headed crack. The shape of an arrow headed crack observed under service loading is considered to be useful to estimate the operating conditions in the service loading. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Tribology Transactions Taylor & Francis

Three-Dimensional Fracture Mechanics Analysis of Pit ormation Mechanism Under Lubricated Rolling-Sliding Contact Loading

Tribology Transactions , Volume 37 (3): 10 – Jan 1, 1994

Three-Dimensional Fracture Mechanics Analysis of Pit ormation Mechanism Under Lubricated Rolling-Sliding Contact Loading

Tribology Transactions , Volume 37 (3): 10 – Jan 1, 1994

Abstract

The mechanism of so-called arrow headed pit formation on contact surfaces under lubricated rolling-sliding cyclic contact loading was analyzed by fracture mechanics. The stress intensity factors of Modes I, II and III for an arrow-headed crack were calculated by three-dimensional numerical analysis. The analytical results support the hypothesis that an arrow headed crack in pitting phenomenon first propagates in shear mode, and that crack growth by tensile mode follows due to a hydraulic effect on crack faces by the oil that has penetrated into the crack. The analysis predicts that the values of contact pressure and frictional force dominantly determine the final surf ace apex angle of an arrow headed crack. The shape of an arrow headed crack observed under service loading is considered to be useful to estimate the operating conditions in the service loading.

Loading next page...
 
/lp/taylor-francis/three-dimensional-fracture-mechanics-analysis-of-pit-ormation-a8T3GyOpyK

References (23)

Publisher
Taylor & Francis
Copyright
Copyright Taylor & Francis Group, LLC
ISSN
1547-397X
eISSN
1040-2004
DOI
10.1080/10402009408983316
Publisher site
See Article on Publisher Site

Abstract

The mechanism of so-called arrow headed pit formation on contact surfaces under lubricated rolling-sliding cyclic contact loading was analyzed by fracture mechanics. The stress intensity factors of Modes I, II and III for an arrow-headed crack were calculated by three-dimensional numerical analysis. The analytical results support the hypothesis that an arrow headed crack in pitting phenomenon first propagates in shear mode, and that crack growth by tensile mode follows due to a hydraulic effect on crack faces by the oil that has penetrated into the crack. The analysis predicts that the values of contact pressure and frictional force dominantly determine the final surf ace apex angle of an arrow headed crack. The shape of an arrow headed crack observed under service loading is considered to be useful to estimate the operating conditions in the service loading.

Journal

Tribology TransactionsTaylor & Francis

Published: Jan 1, 1994

Keywords: Rolling-Contact; Fatigue; Crack Propagation; Rolling Element; Fracture Mechanics; Surface Crack; Stress Intensity Factor

There are no references for this article.