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Estimation of Mode I Fracture Toughness of Rock by Semi-Circular Bend Test under Confining Pressure Condition
http://hdl.handle.net/2298/41982
http://hdl.handle.net/2298/4198245f0b313-06f6-4fc6-9706-9435b958947a
名前 / ファイル | ライセンス | アクション |
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185.pdf (615.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-03-28 | |||||
タイトル | ||||||
タイトル | Estimation of Mode I Fracture Toughness of Rock by Semi-Circular Bend Test under Confining Pressure Condition | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Mode I fracture toughness, Confining pressure, Semi-circular bend test, Kimachi sandstone | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
片岡, みなみ
× 片岡, みなみ× Eqlima, mahadavi× Funatsu, Takahiro× Takehara, Takashi× 尾原, 祐三× Fukui, Katsunori× Hashiba, Kimihiro |
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別言語の著者 |
片岡, みなみ
× 片岡, みなみ |
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内容記述 | ||||||
内容記述 | It is essential to understand the mode I fracture toughness of rock under in situ conditions found underground, such as confining pressure, for assessment of the stability of underground rock structures. Some researchers have performed several types of fracture toughness tests of rocks under confining pressure condition. However, the ordinary fracture toughness tests do not consider the effect of confining pressure in their estimation equations. A modified estimation equation for the mode I fracture toughness of rock under confining pressure condition was suggested in this study. This study was intended for the semi-circular bend (SCB) test, which is one of the ISRM-suggested methods for determining the mode I fracture toughness of rock. The SCB test under various confining pressures from 0 to 10 MPa was performed using Kimachi sandstone. A finite element analysis of the SCB test considering several confining pressure conditions was performed to calculate the stress intensity factor. Based on the numerical simulation results, the modification of the fracture toughness estimation was suggested. Applicability of the suggested estimation was discussed with comparing the mode I fracture toughness of the rock obtained in this study and previous research. | |||||
書誌情報 |
Procedia Engineering 巻 191, p. 886-893, 発行年 2017-06-21 |
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ISSN | ||||||
収録物識別子 | 18777058 | |||||
書誌レコードID | ||||||
収録物識別子 | AA12188381 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
関連識別子 | 10.1016/j.proeng.2017.05.258 | |||||
権利 | ||||||
権利情報 | © 2017 The Author(s) | |||||
フォーマット | ||||||
内容記述 | application/pdf | |||||
形態 | ||||||
615089 bytes | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
日本十進分類法 | ||||||
主題 | 560 | |||||
出版者 | ||||||
出版者 | Elsevier | |||||
資源タイプ | ||||||
内容記述 | 論文(Article) | |||||
資源タイプ・ローカル | ||||||
雑誌掲載論文 | ||||||
資源タイプ・NII | ||||||
Journal Article | ||||||
資源タイプ・DCMI | ||||||
text | ||||||
資源タイプ・ローカル表示コード | ||||||
01 | ||||||
URL | ||||||
内容記述 | https://www.sciencedirect.com/science/article/pii/S1877705817323986 |