中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 武汉岩土力学研究所
  3. 中科院武汉岩土力学所
Experimental and numerical investigation of microstructure effect on the mechanical behavior and failure process of brittle rocks

文献类型：期刊论文

作者Li, Mingyao1; Zuo, Jianping1; Hu, Dawei3; Shao, Jianfu2; Liu, Dejun1
刊名COMPUTERS AND GEOTECHNICS
出版日期2020-09-01
卷号125页码:16
ISSN号0266-352X
关键词Rock micromechanics Damage Numerical modeling Fast Fourier Transform Experimental validation Brittle rocks
DOI10.1016/j.compgeo.2020.103639
英文摘要The microscopic characteristics greatly influence the nonlinear mechanical behavior and failure process of rock materials. In the present work, the experimental investigations are firstly performed including microstructural observations and macroscopic laboratory tests. Based on various experimental evidences, a micromechanical damage model is proposed according to the microscopic characteristics for the description of the local mechanical features such as mineralogical composition, plastic deformation and failure process caused by induced damage. The microstructure of the studied rocks is artificially reconstructed using Fast Fourier Transforms (FFT) based technique without meshing the complex geometry composed of clay matrix and two randomly distributed mineral inclusions. Comparisons between experimental data and numerical predictions are presented for uniaxial and triaxial compression tests. The characterization of damage evolution is visualized by the direct full field numerical simulations corresponding the macroscopic mechanical response. The effects of induced damage, the confining pressure and the overburden depth on the nonlinear mechanical behavior and failure process are schematically studied.
资助项目National Natural Science Foundation of China[11802332] ; National Natural Science Foundation of China[41877257] ; National Natural Science Foundation of China[51622404] ; National Natural Science Foundation of China[11572343] ; Beijing Outstanding Young Scientist Program[BJJWZYJH01201911413037]
WOS研究方向Computer Science ; Engineering ; Geology
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000556345000005
源URL[http://119.78.100.198/handle/2S6PX9GI/24604]  
专题中科院武汉岩土力学所
通讯作者Li, Mingyao; Zuo, Jianping
作者单位1.China Univ Min & Technol, Sch Mech & Civil Engn, Beijing 100083, Peoples R China
2.Univ Lille, LaMcube Lab Mecan Multiphys & Multiechelle, Cent Lille, CNRS,FRE 2016, F-59000 Lille, France
3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Li, Mingyao,Zuo, Jianping,Hu, Dawei,et al. Experimental and numerical investigation of microstructure effect on the mechanical behavior and failure process of brittle rocks[J]. COMPUTERS AND GEOTECHNICS,2020,125:16.
APA Li, Mingyao,Zuo, Jianping,Hu, Dawei,Shao, Jianfu,&Liu, Dejun.(2020).Experimental and numerical investigation of microstructure effect on the mechanical behavior and failure process of brittle rocks.COMPUTERS AND GEOTECHNICS,125,16.
MLA Li, Mingyao,et al."Experimental and numerical investigation of microstructure effect on the mechanical behavior and failure process of brittle rocks".COMPUTERS AND GEOTECHNICS 125(2020):16.

入库方式： OAI收割

来源：武汉岩土力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。