| A new cube movement test for verification of simulations of contact processes of blocks of different size in geological hazards | |
Wang XQ(王心泉) ; Feng C(冯春); Lahayne, Olaf; Zhang, Yiming; Mang, Herbert A.; Pichler, Bernhard L. A.
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| Corresponding Author | Pichler, Bernhard L. A.([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
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| 2024-01-28 | |
| Pages | 28 |
| ISSN | 0363-9061 |
| Abstract | 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. |
| Keyword | contact detection continuum-discontinuum element method irregular polyhedra mass movement |
| DOI | 10.1002/nag.3695 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001150537300001 |
| WOS Keyword | RHEOLOGICAL PROPERTIES ; COMMON PLANE ; MODEL ; DEFORMATION ; FORMULATION ; ALGORITHM ; DYNAMICS ; REPOSE ; MOTION ; ANGLE |
| WOS Research Area | Engineering ; Materials Science ; Mechanics |
| WOS Subject | Engineering, Geological ; Materials Science, Multidisciplinary ; Mechanics |
| Funding Project | 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 |
| Funding Organization | 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 |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Pichler, Bernhard L. A. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94259 |
| Collection | 流固耦合系统力学重点实验室 |
| Recommended Citation 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.Rp_Au:Pichler, Bernhard L. A. |
| 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. |
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