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 |
| 巻 | 37 |
| 号 | 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