3-DIMENSIONAL FRACTURE-MECHANICS ANALYSIS OF PIT FORMATION MECHANISM UNDER LUBRICATED ROLLING-SLIDING CONTACT LOADING

被引：47

作者：

MURAKAMI, Y

SAKAE, C

ICHIMARU, K

机构：

[1] Kyushu University, Fukuoka

来源：

TRIBOLOGY TRANSACTIONS | 1994年 / 37卷 / 03期

关键词：

ROLLING-CONTACT; FATIGUE; CRACK PROPAGATION; ROLLING ELEMENT; FRACTURE MECHANICS; SURFACE CRACK; STRESS INTENSITY FACTOR;

D O I：

10.1080/10402009408983316

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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 made 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 surface 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.

引用

页码：445 / 454

页数：10

共 31 条

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