DEM simulation of mechanical behavior in one-dimensional compression of crushable ceramic pebble bed
文献类型：期刊论文
| 作者 | Wang, Jian1,2 ; Lei, M. Z.2; Xu, S. L.2; Yang, H.2; Zhao, P. H.1,2; Xu, K.2; Song, Y. T.2
|
| 刊名 | FUSION ENGINEERING AND DESIGN
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 168 |
| 关键词 | Mechanical behavior Discrete element method One-dimensional compression Crushed particle Ceramic pebble bed |
| ISSN号 | 0920-3796 |
| DOI | 10.1016/j.fusengdes.2021.112606 |
| 通讯作者 | Lei, M. Z.(leimz@ipp.ac.cn) |
| 英文摘要 | The mechanical behavior in one-dimensional compression of a crushable ceramic pebble bed for the fusion reactor, which is under different crushing ratio assumptions (0% - 2%), was numerically investigated by the discrete element method (DEM) simulation. The crushed particle was modeled by a reduction of the particle radius, therefore, the instantaneous decrease of the local stress could be produced. To guarantee the mass conservation of the particles in the pebble bed, the sub-particle insertion process was conducted. Please note that this paper mainly deals with the post of failure of the particles, hence the pebble failure process was not captured. The results showed that the crushed particles could make the pebble bed softer, and with the same Li4SiO4 pebble bed strain, the bed stress decreased as the crushing ratio grew larger. The impact of the crushing ratio on the radial and axial local packing factor was limited on the oscillating amplitude without affecting the oscillating width. Besides, the effects of the coefficient of friction and restitution under different crushing ratios were investigated. At last, the analysis of changes in the average coordination number with the bed strain under different crushing ratios was performed. |
| WOS关键词 | NUMERICAL-SIMULATION ; THERMAL CREEP ; BREEDER ; BLANKET ; BINARY ; DESIGN ; PROGRESS ; MODEL |
| 资助项目 | Collaborative Innovation Program of Hefei Science Center, CAS[2019HSCCIP006] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000670076100008 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Collaborative Innovation Program of Hefei Science Center, CAS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123406]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Lei, M. Z. |
| 作者单位 | 1.Univ Sci & Technol China, Hefei, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jian,Lei, M. Z.,Xu, S. L.,et al. DEM simulation of mechanical behavior in one-dimensional compression of crushable ceramic pebble bed[J]. FUSION ENGINEERING AND DESIGN,2021,168. |
| APA | Wang, Jian.,Lei, M. Z..,Xu, S. L..,Yang, H..,Zhao, P. H..,...&Song, Y. T..(2021).DEM simulation of mechanical behavior in one-dimensional compression of crushable ceramic pebble bed.FUSION ENGINEERING AND DESIGN,168. |
| MLA | Wang, Jian,et al."DEM simulation of mechanical behavior in one-dimensional compression of crushable ceramic pebble bed".FUSION ENGINEERING AND DESIGN 168(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。