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| DEM investigation on the breakage of spherical aggregate under multi-contact loadings | |
| Liu, Xiaoxing1,2; Wang, Yongchang1,2; Zhang, Zengxu1,2; Yu, Yin3 | |
| 2021-05-13 | |
| Source Publication | AICHE JOURNAL
 |
| ISSN | 0001-1541 |
| Pages | 13 |
| Abstract | 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. |
| Keyword | breakage criterion compression discrete element method granular particle crushing breakage |
| DOI | 10.1002/aic.17294 |
| Language | 英语 |
| WOS Keyword | MECHANICAL-PROPERTIES ; GRANULAR-MATERIALS ; SAND ; STRENGTH ; MODEL ; COMPRESSION ; FRACTURE ; ALUMINA ; TESTS ; SIMULATION |
| Funding Project | 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 Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; State Key Laboratory of Multiphase complex systems ; National Key Research and Development Program of China |
| WOS ID | WOS:000649856300001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/48571 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Liu, Xiaoxing |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.CAEP, Natl Key Lab Shock Wave & Detonat Phys, Inst Fluid Phys, Mianyang, Sichuan, Peoples R China |
| Recommended Citation 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. |
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