Stress field evolution in a ball bearing raceway fatigue spall

被引：22

作者：

Branch N.A. ^{[1
]}

Arakere N.K. ^{[1
]}

Svendsen V. ^{[2
]}

Forster N.H. ^{[2
]}

机构：

[1] Mechanical and Aerospace Engineering, Univ. of Florida, Gainesville

[2] Propulsion Directorate, Air Force Research Laboratory, Wright Patterson AFB

来源：

Journal of ASTM International | 2010年 / 7卷 / 02期

关键词：

Bearing steels; Contact mechanics; Elastic-plastic finite element analysis; Gas/jet turbines; Impact wear; Residual stresses; Rolling contact fatigue; Rolling element bearings; Spall propagation; X-ray diffraction;

D O I：

10.1520/JAI102529

中图分类号：

学科分类号：

摘要：

The governing mechanisms of fatigue spall propagation in ball bearing inner raceways are investigated through the use of elastic-plastic finite element modeling, X-ray diffraction, and the visual inspection of fatigue spall cracks. The model simulates multiple ball impacts with a fatigue spall's edge in a 208 size ball bearing operating at 10,000 rpm. Ball impacts are shown to cause severe plastic deformation within the spall edge and induce tensile residual stresses. The finite element results are supported by X-ray diffraction measurements and the locations of cracks observed around the edge of a spall. Copyright © 2010 by ASTM International.

引用

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