Quantitative evaluation of the displacement distribution and stress intensity factor of fatigue cracks healed by a controlled high-density electric current field

A. Hosoi, T. Yano, Y. Morita, Y. Ju

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Fatigue cracks were healed by controlling a high-density electric current. The changes in the displacement distribution around the crack tip and the stress intensity factor before and after crack healing were evaluated quantitatively with a digital image collation method. According to the results, it was determined that the cracks were closed by approximately 2 to 7-μm in this study. On the other hand, the stress intensity factor decreased or increased depending on the conditions of the crack and the current applied. The physical restriction between the crack surfaces, such as bridging, is important with respect to lowering the stress intensity factor after healing.

本文言語English
ページ(範囲)1025-1033
ページ数9
ジャーナルFatigue and Fracture of Engineering Materials and Structures
37
9
DOI
出版ステータスPublished - 2014 9
外部発表はい

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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