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Title: The crack propagation trend analysis in ceramic rolling element bearing considering initial crack angle and contact load effect
Authors: Yuan, Z
Wang, B
Liu, C 
Wang, Z
Zhang, X
Zhang, Y
Issue Date: 2021
Source: Shock and vibration, 2021, v. 2021, 5559296
Abstract: Silicon nitride ceramic bearings are widely used for their excellent performance. However, due to their special manufacturing method, cracks will occur on ceramic ball surface, and this initial surface crack will propagate under the action of cyclic stress, which will lead to material spalling. This will greatly limit its service life in practical applications, especially under heavy load at high speed. Therefore, it is necessary to study the surface crack propagation of silicon nitride ceramic bearings. In this paper, the effect of initial crack angle and contact load on crack growth is analysed by the finite element method (FEM). A three-dimensional finite element model of a silicon nitride bearing ball containing an initial crack is created by the FEM. The cracks are initially classified based on the angle between the crack and the bearing ball surface, and the location of the most dangerous load for each type of crack is known by theoretical analysis. The stress intensity factors (SIFs) are calculated for the crack front to investigate the effect of load position on crack growth. Subsequently, the SIFs are calculated for each type of crack angle subdivided again to investigate the effect of crack angle on crack propagation.
Publisher: Hindawi Publishing Corporation
Journal: Shock and vibration 
ISSN: 1070-9622
EISSN: 1875-9203
DOI: 10.1155/2021/5559296
Rights: © 2021 Zhe Yuan et al.
This is an open access article distributed under the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The following publication Yuan, Zhe; Wang, Bohan; Liu, Chao; Wang, Zhan; Zhang, Xiaochen; Zhang, Yu; The Crack Propagation Trend Analysis in Ceramic Rolling Element Bearing considering Initial Crack Angle and Contact Load Effect, Shock and Vibration, 2021, 1070-9622 is available at
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