New crushing criterion invariant to the coordination number effect in discrete element modelling
文献类型：期刊论文
| 作者 | Gong, Jian1,2,3; Huang, Dianhong2; Mei, Guoxiong2,4; Jiang, Jie2; Jiang, Mingjie2; Ou, Xiaoduo2; Chen, Mingxi2 |
| 刊名 | ACTA GEOTECHNICA
 |
| 出版日期 | 2023-12-06 |
| 页码 | 16 |
| 关键词 | Coordination number Crushing criterion DEM Granular material Particle crushing |
| ISSN号 | 1861-1125 |
| DOI | 10.1007/s11440-023-02149-z |
| 英文摘要 | The discrete element method (DEM) is used widely to study the crushing behaviour of granular materials from a microscale perspective. However, a crushing criterion that can be suitable for triggering particle crushing for different coordination numbers (CNs) is still lacking. To develop a crushing criterion, particle crushing tests are conducted for different CNs via the DEM. Crushable spherical agglomerates are made by bonding smaller sub-spheres. Based on the results of simulations, a new crushing criterion invariant to the coordination number effect is proposed. The crushing criterion is simply expressed in terms of the three principal stresses of the particles. Furthermore, the applicability of the criterion is verified under various conditions, such as different numbers of sub-sphere, shapes of particles, microscale parameters and loading patterns. By using the new criterion, the particle strengths obtained from the single particle crushing tests can be used as the crushing strengths for the particles under multiple contact loading conditions in DEM simulations. |
| 资助项目 | National Natural Science Foundation of China[52368045] ; National Natural Science Foundation of China[51809292] ; National Natural Science Foundation of China[SKLGME021007] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[2022MD723786] ; China Postdoctoral Science Foundation[2021AC19244] ; Guangxi Science and Technology Base and Talent Project |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001115191000008 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40058]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Ou, Xiaoduo |
| 作者单位 | 1.Hualan Design & Consulting Grp, Nanning 530011, Guangxi, Peoples R China 2.Guangxi Univ, Sch Civil Engn & Architecture, Nanning 530004, Guangxi, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 4.Zhejiang Univ, Ocean Coll, Zhoushan 316021, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, Jian,Huang, Dianhong,Mei, Guoxiong,et al. New crushing criterion invariant to the coordination number effect in discrete element modelling[J]. ACTA GEOTECHNICA,2023:16. |
| APA | Gong, Jian.,Huang, Dianhong.,Mei, Guoxiong.,Jiang, Jie.,Jiang, Mingjie.,...&Chen, Mingxi.(2023).New crushing criterion invariant to the coordination number effect in discrete element modelling.ACTA GEOTECHNICA,16. |
| MLA | Gong, Jian,et al."New crushing criterion invariant to the coordination number effect in discrete element modelling".ACTA GEOTECHNICA (2023):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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