このエントリーをはてなブックマークに追加
ID 15447
Eprint ID
15447
フルテキストURL
著者
谷口 健男 Department of Engineering Science, Okayama University
廣瀬 壮一 Department of Engineering Science, Okayama University
Ouchterlony Finn Swedish Blasting Laboratory, Sweden
Nakagawa Kohji Department of Civil Engineering, Yamaguchi University
Miyaji Akihiko Japan Development and Construction Company Ltd.
Fukuoka Yasufumi Kawasaki Heavy Industry Company Ltd.
抄録
The testing method of rock toughness is proposed by the international society of rock mechanics (ISRM), but the results may be influenced by the test pieces, and the details of the crack propagation and the stress intensity factors are not clarified through the testing. Also the experimental test requires tedious works for the preparation of test specimen and economical responsibility. The present study aims to simulate numerically the rock toughness testing which is proposed by ISRM. For this purpose, the authors propose a numerical method which can simulate the experimental testing, and they show the propriety of the proposed method by comparing the results with the experimental and other numerical methods. At the same time, they clarify the details of crack propagation behaviors in rocks, and show the change of the stress intensity factors. The proposed method is based on the displacement-type finite element method, and several techniques are introduced to obtain accurate solution of the mechanical behavior near the crack-tip area.
発行日
1993-11-30
出版物タイトル
Memoirs of the Faculty of Engineering, Okayama University
出版物タイトル(別表記)
岡山大学工学部紀要
28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
129
終了ページ
138
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