Experimental and numerical investigation of microstructure effect on the mechanical behavior and failure process of brittle rocks

doi:10.1016/j.compgeo.2020.103639

CSpace

	Experimental and numerical investigation of microstructure effect on the mechanical behavior and failure process of brittle rocks
	Li, Mingyao 1; Zuo, Jianping 1; Hu, Dawei 2; Shao, Jianfu 3; Liu, Dejun 1
	2020-09-01
发表期刊	COMPUTERS AND GEOTECHNICS
ISSN	0266-352X
卷号	125 期号:-页码:16
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.
关键词	Rock micromechanics Damage Numerical modeling Fast Fourier Transform Experimental validation Brittle rocks
DOI	10.1016/j.compgeo.2020.103639
收录类别	SCI
语种	英语
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
WOS类目	Computer Science, Interdisciplinary Applications ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS记录号	WOS:000556345000005
出版者	ELSEVIER SCI LTD
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.198/handle/2S6PX9GI/24605
专题	中科院武汉岩土力学所
作者单位	1.China Univ Min & Technol, Sch Mech & Civil Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 3.Univ Lille, LaMcube Lab Mecan Multiphys & Multiechelle, Cent Lille, CNRS,FRE 2016, F-59000 Lille, France
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.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
j.compgeo.2020.10363（14077KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载