DEM investigation on the breakage of spherical aggregate under multi-contact loadings

doi:10.1002/aic.17294

	DEM investigation on the breakage of spherical aggregate under multi-contact loadings
	Liu, Xiaoxing 2,3; Wang, Yongchang 2,3; Zhang, Zengxu 2,3; Yu, Yin 1
刊名	AICHE JOURNAL
	2021-05-13
页码	13
关键词	breakage criterion compression discrete element method granular particle crushing breakage
ISSN号	0001-1541
DOI	10.1002/aic.17294
英文摘要	Particle crushing is commonly encountered during the storage, transportation, and handling of granular assemblies. This work is aimed at ascertaining the applicability of four particle breakage criteria frequently mentioned in literature. Discrete element method (DEM) simulations were conducted to investigate the crushing of spherical aggregates under multicontact loadings. Mean and major principal stress criteria, octahedral shear stress criterion, and maximal contact force (MCF) criterion were then evaluated based on the obtained DEM results. It is found that the first three parameters all vary with the number of loading contacts, demonstrating they cannot predict the crushing of particles under arbitrary loading configuration. Simulation results indicate that the MCF at crushing is related to the number and the spatial arrangement of loading contacts. Thus, strictly speaking, this parameter cannot uniquely define particle breakage either. The influences of the microstructural heterogeneity on the breakage strength of particle and also on the applicability of MCF criterion are discussed.
资助项目	Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A13] ; State Key Laboratory of Multiphase complex systems[MPCS-2019-A-04] ; National Key Research and Development Program of China[2017YFE0300602]
WOS关键词	MECHANICAL-PROPERTIES ; GRANULAR-MATERIALS ; SAND ; STRENGTH ; MODEL ; COMPRESSION ; FRACTURE ; ALUMINA ; TESTS ; SIMULATION
WOS研究方向	Engineering
语种	英语
出版者	WILEY
WOS记录号	WOS:000649856300001
资助机构	Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; State Key Laboratory of Multiphase complex systems ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48570]
专题	中国科学院过程工程研究所
通讯作者	Liu, Xiaoxing
作者单位	1.CAEP, Natl Key Lab Shock Wave & Detonat Phys, Inst Fluid Phys, Mianyang, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiaoxing,Wang, Yongchang,Zhang, Zengxu,et al. DEM investigation on the breakage of spherical aggregate under multi-contact loadings[J]. AICHE JOURNAL,2021:13.
APA	Liu, Xiaoxing,Wang, Yongchang,Zhang, Zengxu,&Yu, Yin.(2021).DEM investigation on the breakage of spherical aggregate under multi-contact loadings.AICHE JOURNAL,13.
MLA	Liu, Xiaoxing,et al."DEM investigation on the breakage of spherical aggregate under multi-contact loadings".AICHE JOURNAL (2021):13.