Some open problems in granular matter mechanics
文献类型：期刊论文
| 作者 | Sun, Qicheng1; Wang, Guangqian1; Hu, Kaiheng2
|
| 刊名 | PROGRESS IN NATURAL SCIENCE
 |
| 出版日期 | 2009-05-10 |
| 卷号 | 19期号:5页码:523-529 |
| 关键词 | Granular matter Multiscale mechanics Force chain Contact mechanics Debris flow |
| ISSN号 | 1002-0071 |
| 通讯作者 | Sun, Qicheng |
| 英文摘要 | Granular matter is a large assemblage of solid particles, which is fundamentally different from any other type of matters, such as solid and liquid. Most models presented for granular matter are phenomenological and are only suitable for solving engineering problems. Many fundamental mechanical problems remain open. By analyzing characteristics of internal state structure, we propose that granular matter is intrinsically multiscale, i.e. microscale of particle size, mesoscale of force chain, and macroscale of the bulk of granular matter. The correlations among difference scales would be crucial. The mesoscale force chain network is determined by both particle properties and macroscopic boundary conditions. The evolution of the force the chain network contributes to macroscopic mechanical properties of granular matter. In addition, we discuss the drawbacks in simplifying contact forces in the current models, and the difficulties in analyzing the interaction of interstitial fluid in wet granular matter. As an appropriate application of granular matter, debris flow can be studied with granular matter mechanics; meanwhile, debris flow brings more challenges which certainly motivate future studies on granular matter. (C) 2008 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary ; Multidisciplinary Sciences |
| 研究领域[WOS] | Materials Science ; Science & Technology - Other Topics |
| 关键词[WOS] | FLOWS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264659800001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10560]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Qicheng,Wang, Guangqian,Hu, Kaiheng. Some open problems in granular matter mechanics[J]. PROGRESS IN NATURAL SCIENCE,2009,19(5):523-529. |
| APA | Sun, Qicheng,Wang, Guangqian,&Hu, Kaiheng.(2009).Some open problems in granular matter mechanics.PROGRESS IN NATURAL SCIENCE,19(5),523-529. |
| MLA | Sun, Qicheng,et al."Some open problems in granular matter mechanics".PROGRESS IN NATURAL SCIENCE 19.5(2009):523-529. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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