Numerical analysis of silo behavior using non-coaxial models
文献类型：期刊论文
| 作者 | Ooi, Jin1; Rotter, Michael1; Yang, Yunming2; Wang, Yin1 |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2011 |
| 卷号 | 66期号:8页码:1715-1727 |
| 关键词 | Computation Mathematical modeling Numerical analysis Particle processing Silos Elasto-plasticity |
| ISSN号 | 0009-2509 |
| DOI | 10.1016/j.ces.2011.01.012 |
| 英文摘要 | Granular solids in silos experience considerable principal stress rotations, which result in the non-coaxiality between principal stresses and plastic strain rates. This paper discusses the influences of the use of elastoplastic non-coaxial models for granular solids on predictions of wall pressure distributions in silos by using the finite element method. A well established non-coaxial model in geomechanics, the yield vertex model, is employed. Simulations are performed on a steep hopper characterized with a mass flow and a flat-bottomed silo with a semi-mass flow. The simulations indicate that the non-coaxiality does not influence predictions of wall pressures after filling. On the other hand, the predicted discharge wall pressures with non-coaxial considerations are larger than those without it. Its mechanism is discussed in this paper. The suppressed shear-dilatancy of granular solids in silos leads to a larger increase of normal stress with non-coaxial models. (C) 2011 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000288015800017 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3284]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Univ Edinburgh, Sch Engn 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; |
| 推荐引用方式 GB/T 7714 | Ooi, Jin,Rotter, Michael,Yang, Yunming,et al. Numerical analysis of silo behavior using non-coaxial models[J]. CHEMICAL ENGINEERING SCIENCE,2011,66(8):1715-1727. |
| APA | Ooi, Jin,Rotter, Michael,Yang, Yunming,&Wang, Yin.(2011).Numerical analysis of silo behavior using non-coaxial models.CHEMICAL ENGINEERING SCIENCE,66(8),1715-1727. |
| MLA | Ooi, Jin,et al."Numerical analysis of silo behavior using non-coaxial models".CHEMICAL ENGINEERING SCIENCE 66.8(2011):1715-1727. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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