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

抜粋

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.

元の言語English
ページ(範囲)237-241
ページ数5
ジャーナルInternational Journal of Fatigue
19
発行部数3
DOI
出版物ステータスPublished - 1997 3

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ASJC Scopus subject areas

  • Modelling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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