Journal
POWDER TECHNOLOGY
Volume 352, Issue -, Pages 314-324Publisher
ELSEVIER
DOI: 10.1016/j.powtec.2019.04.077
Keywords
Binary mixtures; Size ratio; Fines content; Internal stability; Microscopic characteristics
Categories
Funding
- National Natural Science Foundation of China [51809292]
- Beijing Municipal Science and Technology Project: Research and Application of Design and Construction Technology of Railway Engineering Traveling the Rift Valley [Z181100003918005]
- Fundamental Research Funds for the Central Universities of Central South University [2018zzts195]
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This study explores the effects of the size ratio and fines content on the internal stability of binary mixtures using the discrete element method. First, microscopic characteristics, including the particle contact, stress and local structure, are carefully examined. Then, internal stability evaluations of binary mixtures are carried out using two existing stability criteria, which are not consistent with the microscopic characteristics. Lastly, a new stability criterion for evaluating the internal stability of binary mixtures is proposed, which is found to be acceptable. (C) 2019 Elsevier B.V. All rights reserved.
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