Roughness Effects of Crack Surfaces on the Elastic Moduli of Cracked Rocks
文献类型：期刊论文
| 作者 | Fu, Bo-Ye3,5; Fu, Li-Yun2,4; Han, Tongcheng2,4; Cao, Chenghao1 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2021-04-08 |
| 卷号 | 9页码:14 |
| 关键词 | effective medium cracked rock crack surface elastic modulus rock physics model |
| DOI | 10.3389/feart.2021.626903 |
| 英文摘要 | Crack surfaces are usually rough on various scales, and are sensitive to loading stresses and hence significantly affecting the mechanical properties of cracked rocks. We design a number of dry- and fluid-saturated numerical cracked samples to investigate the roughness influence of crack surfaces on the elastic stiffness. The fracture surface roughness is characterized by non-uniform fracture radii. We calculate the elastic moduli of cracked samples by finite-element simulation. Comparisons with the theoretical predictions by Gassmann and C&S (Ciz and Shapiro) (Ciz and Shapiro, Geophysics, 2007, 72(6), A75-A79) substitution equations demonstrate that the rough crack surfaces for both dry- and fluid-saturated samples can induce a stress concentration around the crack that reduces the elastic moduli and decreases the stiffness of rocks. For the fluid/solid-saturated cracks under the normal (shear) loading stresses, because the stress-concentration can induce shear (normal) strains around fracture, shear (bulk) modulus of the filling material will have contributions to the effective bulk (shear) modulus of rocks. The extra contribution, however, makes the Gassmann equation and C&S equation invalid. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010303] ; National Natural Science Foundation of China[41821002] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000642086900001 |
| 出版者 | FRONTIERS MEDIA SA |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101127]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Fu, Bo-Ye; Fu, Li-Yun |
| 作者单位 | 1.Nanjing Tech Univ, Sch Transportat Engn, Nanjing, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China 3.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China 4.China Univ Petr East China, Key Lab Deep Oil & Gas, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Bo-Ye,Fu, Li-Yun,Han, Tongcheng,et al. Roughness Effects of Crack Surfaces on the Elastic Moduli of Cracked Rocks[J]. FRONTIERS IN EARTH SCIENCE,2021,9:14. |
| APA | Fu, Bo-Ye,Fu, Li-Yun,Han, Tongcheng,&Cao, Chenghao.(2021).Roughness Effects of Crack Surfaces on the Elastic Moduli of Cracked Rocks.FRONTIERS IN EARTH SCIENCE,9,14. |
| MLA | Fu, Bo-Ye,et al."Roughness Effects of Crack Surfaces on the Elastic Moduli of Cracked Rocks".FRONTIERS IN EARTH SCIENCE 9(2021):14. |
入库方式： OAI收割
来源：地质与地球物理研究所
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