Study of the shear-rate dependence of granular friction based on community detection

doi:10.1007/s11433-018-9295-2

	Study of the shear-rate dependence of granular friction based on community detection
	Zhang, YongWen 1,2; Hu, GaoKe 2,3; Chen, XiaoSong 2,3; Chen, Wei 4; Liu, WenQi 1
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2019-04-01
卷号	62 期号:4 页码:7
关键词	granular shear-rate friction community detection
ISSN号	1674-7348
DOI	10.1007/s11433-018-9295-2
英文摘要	In this study, computer simulations are performed on three-dimensional granular systems under shear conditions. The system comprises granular particles that are confined between two rigid plates. The top plate is subjected to a normal force and driven by a shearing velocity. A positive shear-rate dependence of granular friction, known as velocity-strengthening, exists between the granular and shearing plate. To understand the origin of the dependence of frictional sliding, we treat the granular system as a complex network, where granular particles are nodes and normal contact forces are weighted edges used to obtain insight into the interiors of granular matter. Community structures within granular property networks are detected under different shearing velocities in the steady state. Community parameters, such as the size of the largest cluster and average size of clusters, show significant monotonous trends in shearing velocity associated with the shear-rate dependence of granular friction. Then, we apply an instantaneous change in shearing velocity. A dramatic increase in friction is observed with a change in shearing velocity in the non-steady state. The community structures in the non-steady state are different from those in the steady state. Results indicate that the largest cluster is a key factor affecting the friction between the granular and shearing plate.
资助项目	National Natural Science Foundation of China[61573173] ; National Natural Science Foundation of China[11504384] ; Key Research Program of Frontier Sciences, Chinese Academy Sciences[QYZD-SSW-SYS019] ; Kunming University of Science and Technology
WOS关键词	NETWORKS ; DYNAMICS ; MEDIA
WOS研究方向	Physics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000450954800001
资助机构	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy Sciences ; Kunming University of Science and Technology
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/26645]
专题	中国科学院过程工程研究所
通讯作者	Chen, Wei; Liu, WenQi
作者单位	1.Kunming Univ Sci & Technol, Data Sci Res Ctr, Fac Sci, Kunming 650500, Yunnan, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, YongWen,Hu, GaoKe,Chen, XiaoSong,et al. Study of the shear-rate dependence of granular friction based on community detection[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2019,62(4):7.
APA	Zhang, YongWen,Hu, GaoKe,Chen, XiaoSong,Chen, Wei,&Liu, WenQi.(2019).Study of the shear-rate dependence of granular friction based on community detection.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,62(4),7.
MLA	Zhang, YongWen,et al."Study of the shear-rate dependence of granular friction based on community detection".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 62.4(2019):7.