Fracture mechanics-based criteria for fatigue fracture of rolling bearings under the influence of defects

Daisuke Watanuki, Masako Tsutsumi, Hideyuki Hidaka, Kentaro Wada, Hisao Matsunaga

研究成果: Contribution to journalArticle査読

抄録

Fatigue tests were carried out on real bearings with various types of artificial defects on their outer-ring raceways. Finite element analysis (FEM) revealed that the stress intensity factor (SIF) ranges and stress ratios were complex and variable, depending on the gap fittings between the outer rings and housings, as well as on the sizes of the initial defects, both of which influenced the fatigue thresholds of the bearings. In order to establish a comprehensive evaluation of fatigue limits under several combinations of bearing geometries and defect sizes, fatigue crack-growth thresholds were also measured at different stress ratios by focusing on crack-closure behaviour. Based on all of the analytical and experimental results, fracture mechanics-based criteria were proposed for the assessment of fatigue fracture in rolling bearings.

本文言語英語
ページ(範囲)952-966
ページ数15
ジャーナルFatigue and Fracture of Engineering Materials and Structures
44
4
DOI
出版ステータス出版済み - 4 2021

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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