A soft-rigid contact model of MPM for granular flow impact on retaining structures
文献类型：期刊论文
| 作者 | Li, Xinpo1,2 ; Xie, Yanfang2,3; Gutierrez, Marte4
|
| 刊名 | COMPUTATIONAL PARTICLE MECHANICS
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 5期号:4页码:529-537 |
| 关键词 | Material point method Granular flow Impact force Soil-structure interaction |
| ISSN号 | 2196-4378 |
| DOI | 10.1007/s40571-018-0188-5 |
| 英文摘要 | Protective measures against hazards associated with rapid debris avalanches include a variety of retaining structures such as rock/boulder fences, gabions, earthfill barriers and retaining walls. However, the development of analytical and numerical methods for the rational assessment of impact force generated by granular flows is still a challenge. In this work, a soft-rigid contact model is built under the coding framework of MPM which is a hybrid method with Eulerian-Lagrangian description. The soft bodies are discretized into particles (material points), and the rigid bodies are presented by rigid node-based surfaces. Coulomb friction model is used to implement the modeled contact mechanics, and a velocity-dependent friction coefficient is coupled into the model. Simulations of a physical experiment show that the peak and residual value of impact forces are well captured by the MPM model. An idealized scenario of debris avalanche flow down a hillslope and impacting on a retaining wall are analyzed using the MPM model. The calculated forces can provide a quantitative estimate from which mound design could proceed for practical implementation in the field. |
| 语种 | 英语 |
| WOS记录号 | WOS:000445873600010 |
| 出版者 | SPRINGER INTERNATIONAL PUBLISHING AG |
| 源URL | [http://ir.imde.ac.cn/handle/131551/23991]  |
| 专题 | 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 |
| 通讯作者 | Li, Xinpo |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Colorado Sch Mines, Civil & Environm Engn, 1012 14th St, Golden, CO 80401 USA |
| 推荐引用方式 GB/T 7714 | Li, Xinpo,Xie, Yanfang,Gutierrez, Marte. A soft-rigid contact model of MPM for granular flow impact on retaining structures[J]. COMPUTATIONAL PARTICLE MECHANICS,2018,5(4):529-537. |
| APA | Li, Xinpo,Xie, Yanfang,&Gutierrez, Marte.(2018).A soft-rigid contact model of MPM for granular flow impact on retaining structures.COMPUTATIONAL PARTICLE MECHANICS,5(4),529-537. |
| MLA | Li, Xinpo,et al."A soft-rigid contact model of MPM for granular flow impact on retaining structures".COMPUTATIONAL PARTICLE MECHANICS 5.4(2018):529-537. |
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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