A new cube movement test for verification of simulations of contact processes of blocks of different size in geological hazards
文献类型：期刊论文
| 作者 | Wang XQ(王心泉) ; Feng C(冯春); Lahayne, Olaf; Zhang, Yiming; Mang, Herbert A.; Pichler, Bernhard L. A.
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| 刊名 | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
 |
| 出版日期 | 2024-01-28 |
| 页码 | 28 |
| ISSN号 | 0363-9061 |
| 关键词 | contact detection continuum-discontinuum element method irregular polyhedra mass movement |
| DOI | 10.1002/nag.3695 |
| 通讯作者 | Pichler, Bernhard L. A.(Bernhard.Pichler@tuwien.ac.at) |
| 英文摘要 | In many geological hazards, such as landslides, a large number of irregular blocks start moving. Their interaction on the way down renders prediction of disaster scopes difficult. To study this process and to provide a novel method for validation and calibration of numerical tools for its simulation, a cube movement test is designed. The goal of this research is to obtain patterns of movement of cubes, starting from different initial stacking arrangements. Cubes of four sizes are inserted into a hollow cylinder. Their distribution after lifting the cylinder is determined. Three categories of tests refer to three different strategies of filling the cubes into the cylinder. In order to simulate cube movement tests, a numerical tool is developed in the framework of the continuum-discontinuum element method (CDEM). The contact between the individual cubes is modeled by the contact-pairs-based algorithm. Both the contact state and type are detected by determining the half-space relation between contact pairs. The final positions of the cubes are strongly related to their initial arrangement. The latter is different in every test, even if the same strategy is used to fill the cubes into the cylinder. It is found that at least 20 experiments/simulations are required to obtain statistically representative results. The new test provides valuable data for validation of numerical tools used for the simulation of mass movement processes. The proposed numerical method captures the complicated movements of blocks. |
| 分类号 | 二类/Q1 |
| WOS关键词 | RHEOLOGICAL PROPERTIES ; COMMON PLANE ; MODEL ; DEFORMATION ; FORMULATION ; ALGORITHM ; DYNAMICS ; REPOSE ; MOTION ; ANGLE |
| 资助项目 | China Scholarship Council ; China Scholarship Council (CSC) ; National Key Research and Development Project of China[2018YFC1505504] ; Ministry of Science and Technology of China ; TU Wien Bibliothek |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001150537300001 |
| 资助机构 | China Scholarship Council ; China Scholarship Council (CSC) ; National Key Research and Development Project of China ; Ministry of Science and Technology of China ; TU Wien Bibliothek |
| 其他责任者 | Pichler, Bernhard L. A. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94258]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Wang XQ,Feng C,Lahayne, Olaf,et al. A new cube movement test for verification of simulations of contact processes of blocks of different size in geological hazards[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2024:28. |
| APA | 王心泉,冯春,Lahayne, Olaf,Zhang, Yiming,Mang, Herbert A.,&Pichler, Bernhard L. A..(2024).A new cube movement test for verification of simulations of contact processes of blocks of different size in geological hazards.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,28. |
| MLA | 王心泉,et al."A new cube movement test for verification of simulations of contact processes of blocks of different size in geological hazards".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS (2024):28. |
入库方式： OAI收割
来源：力学研究所
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