A new method of dynamic measurements of the plastic deformation occurring at a fatigue crack tip

M. Shimojo, T. Nagatomo, Y. Higo, S. Nunomura

研究成果: Article査読

抄録

In order to know the plastic deformation behaviour at fatigue crack tips, a new electrochemical method combined with a source wave analysis has been developed. This method provides dynamic measurements of the fresh bare surface creation which occurs at a crack tip. This is achieved by deconvolution calculations of the repassivation current at the fresh surfaces. The fresh surface creation rate increases non-linearly when the stress intensity factor increases linearly. It has also been found that load ratio does not affect the crack tip plastic deformation behaviour.

本文言語English
ページ(範囲)237-241
ページ数5
ジャーナルInternational Journal of Fatigue
19
3
DOI
出版ステータスPublished - 1997 3
外部発表はい

ASJC Scopus subject areas

  • モデリングとシミュレーション
  • 材料科学(全般)
  • 材料力学
  • 機械工学
  • 産業および生産工学

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