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Numerical investigation on the shear behavior of rock-like materials containing fissure-holes with FEM-CZM method
http://hdl.handle.net/10069/40062
http://hdl.handle.net/10069/400622933d1e3-e4da-4176-bab4-5a0a4f44c4a4
名前 / ファイル | ライセンス | アクション |
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CG125_103670.pdf (3.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-12-18 | |||||
タイトル | ||||||
タイトル | Numerical investigation on the shear behavior of rock-like materials containing fissure-holes with FEM-CZM method | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cohesive elements | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Crack propagation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | FEM-CZM | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Fissure-holes | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Shear behavior | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Han, Wei
× Han, Wei× Jiang, Yujing× Luan, Hengjie× Du, Yiteng× Zhu, Yinge× Liu, Jiankang |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Holes, including their shape and distribution, significantly affect the performance in rocks. In this paper, a numerical investigation, based on a FEM-CZM method, was developed to explore the shear behavior of rock-like materials containing fissure-holes. The laboratory uniaxial compression test was initially performed, and a corresponding numerical model was established by inserting zero-thickness cohesive elements into finite elements globally, the mechanical parameters were acquired by parameter trial and error tests. Subsequently, numerical direct shear tests were conducted under the constant normal stress level. Finally, the mechanical properties, shear deformation, and cracking behaviors were respectively discussed. The results show that for rock-like materials containing fissure-holes, the shearing process can be divided into four typical stages from the perspective of the cohesive elements. In addition, the mechanical characteristics (i.e., peak shear strength, residual shear strength, and crack initiation stress), shear deformation, and cracking behaviors (i.e., crack initiation, propagation, and coalescence), as well as the coalescence mechanism strongly depend on the shape, ligament angle, and the combination of fissure-holes. Furthermore, based on the damaged cohesive elements, the rock bridge coalescence modes between two fissure-holes were identified as “DT” (dominated by tensile damage), “T” (tensile damage), and “S + T” (shear and tensile damage), respectively. | |||||
書誌情報 |
Computers and Geotechnics 巻 125, p. 103670, 発行日 2020-06-07 |
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出版者 | ||||||
出版者 | Elsevier Ltd. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0266352X | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.compgeo.2020.103670 | |||||
権利 | ||||||
権利情報 | c 2020 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Computers and Geotechnics, 125, art.no.103670; 2020 |