このエントリーをはてなブックマークに追加
ID 14096
Eprint ID
14096
フルテキストURL
著者
馬 有理 The Graduate School of Natural Science and Technology, Okayama University
清水 憲一 Division of Industrial Innovation Sciences The Graduate School of Natural Science and Technology, Okayama University
鳥居 太始之 Division of Industrial Innovation Sciences The Graduate School of Natural Science and Technology, Okayama University
抄録
A testing for bent fatigue crack propagation under mixed-mode conditions was carried out using fatigue and annealed slant precracks with different slant angles, β ,defined as the angle between loading and precrack directions in a rectangular plate. As a result, bent fatigue crack from the fatigue precrack with β =45deg. propagated under mixed-mode conditions with mode II stress intensity factor (K(II))(est) evaluated from the discontinuous displacement measured along the crack. On the other hand, bent fatigue crack from the fatigue precrack with β =60deg. and from the annealed precracks with both slant angles of β =60deg. and β =45deg. propagated under the mode I behavior. This was because the compressive residual stress near the fatigue precrack caused contact to each other between the upper and the lower surfaces of the precrack with the smaller slant angle β . Furthermore, the fatigue crack propagation rates indicated almost the same relationship for all the data, using the mixed-mode effective stress intensity factor (K(M))(est), calculated from the discontinuous displacement measured along the bent fatigue crack.
発行日
2006-01
出版物タイトル
Memoirs of the Faculty of Engineering, Okayama University
40巻
1号
出版者
Faculty of Engineering, Okayama University
出版者(別表記)
岡山大学工学部
開始ページ
1
終了ページ
8
ISSN
0475-0071
NCID
AA10699856
資料タイプ
紀要論文
言語
English
論文のバージョン
publisher
査読
無し
Eprints Journal Name
mfe