Investigation for small shear-mode fatigue cracks in bearing steels

S. Okazaki, A. Kusaba, H. Matsunaga, M. Endo

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

Since flaking and spalling caused by rolling contact fatigue associate with a small crack,a special testing method and machine are required to study the small fatigue crack behavior undershear mode loading. It was found by authors that the behaviors of small shear-mode fatigue cracksfrom the inclusions and from the artificial defects could be successfully observed by applying thefully-reversed torsion coupled with static axial compressive stress. However, the servo-hydraulicfatigue testing machine is quite expensive for purchase and maintenance, and large installationspace is necessary for the hydraulic and cooling systems. Moreover, the presence of axialcompression significantly lowers the frequency of torsional loading, which consequently results inlow testing speed. In this study, a cost-effective, space-saving and high-speed fatigue testingmethod was newly proposed, and the shear-mode fatigue crack growth tests were carried out byusing the developed machine. Based on the obtained experimental data, the potential of the newtesting machine is discussed.

本文言語英語
ホスト出版物のタイトルAdvanced Materials Science and Technology
出版社Trans Tech Publications Ltd
ページ236-239
ページ数4
ISBN(印刷版)9783037856604
DOI
出版ステータス出版済み - 2013
外部発表はい
イベント8th International Forum on Advanced Materials Science and Technology, IFAMST 2012 - Fukuoka City, 日本
継続期間: 8月 1 20128月 4 2012

出版物シリーズ

名前Materials Science Forum
750
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

その他

その他8th International Forum on Advanced Materials Science and Technology, IFAMST 2012
国/地域日本
CityFukuoka City
Period8/1/128/4/12

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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