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Compression-Induced Tensile Mechanical Behaviors of the Crystalline Rock under Dynamic Loads

文献类型：期刊论文

作者Zheng, Bowen1,2,3; Qi, Shengwen1,2,3; Huang, Xiaolin1,2,3; Liang, Ning1,2,3; Guo, Songfeng1,2,3
刊名MATERIALS
出版日期2020-11-01
卷号13期号:22页码:17
关键词crystalline rock compression-induced tensile behavior dynamic load microstructure grain heterogeneity grain-based model UDEC
DOI10.3390/ma13225107
英文摘要Characterization of the tensile mechanical behaviors of rocks under dynamic loads is of great significance for the practical engineering. However, thus far, its micromechanics have rarely been studied. This paper micromechanically investigated the compression-induced tensile mechanical behaviors of the crystalline rock using the grain-based model (GBM) by universal distinct element code (UDEC). Results showed that the crystalline rock has the rate- and heterogeneity-dependency of tensile behaviors. Essentially, dynamic Brazilian tensile strength increased in a linear manner as the loading rate increased. With the size distribution and morphology of grain-scale heterogeneity weakened, it increased, and this trend was obviously enhanced as the loading rate increased. Additionally, the rate-dependent characteristic became strong with the grain heterogeneity weakened. The grain heterogeneity prominently affected the stress distribution inside the synthetic crystalline rock, especially in the mixed compression and tension zone. Due to heterogeneity, there were tensile stress concentrations (TSCs) in the sample which could favor microcracking and strength weakening of the sample. As the grain heterogeneity weakened or the loading rate increased, the magnitude of the TSC had a decreasing trend and there was a transition from the sharp TSC to the smooth tensile stress distribution zone. The progressive failure of the crystalline rock was notably influenced by the loading rate, which mainly represented the formation of the crushing zone adjacent to two loading points. Our results are meaningful for the practical engineering such as underground protection works from stress waves.
WOS关键词MICROSCALE HETEROGENEITY ; FRACTURE ; STRENGTH ; FAILURE ; PROPAGATION ; BRITTLE ; TESTS
资助项目Key Deployment Program of the Chinese Academy of Sciences[KFZD-SW-422] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; National Natural Science Foundation of China[41825018] ; National Natural Science Foundation of China[41941018] ; National Natural Science Foundation of China[41672307] ; National Natural Science Foundation of China[41902289] ; National Natural Science Foundation of China[41807273] ; National Natural Science Foundation of China[41702345] ; National Key Research and Development Plan of China[2019YFC1509701] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201903402] ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences[KLSG201702] ; China Postdoctoral Science Foundation[2017M620903]
WOS研究方向Materials Science
语种英语
出版者MDPI
WOS记录号WOS:000594877800001
资助机构Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, and Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/99866]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Qi, Shengwen
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zheng, Bowen,Qi, Shengwen,Huang, Xiaolin,et al. Compression-Induced Tensile Mechanical Behaviors of the Crystalline Rock under Dynamic Loads[J]. MATERIALS,2020,13(22):17.
APA Zheng, Bowen,Qi, Shengwen,Huang, Xiaolin,Liang, Ning,&Guo, Songfeng.(2020).Compression-Induced Tensile Mechanical Behaviors of the Crystalline Rock under Dynamic Loads.MATERIALS,13(22),17.
MLA Zheng, Bowen,et al."Compression-Induced Tensile Mechanical Behaviors of the Crystalline Rock under Dynamic Loads".MATERIALS 13.22(2020):17.

入库方式： OAI收割

来源：地质与地球物理研究所

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