A new cube movement test for verification of simulations of contact processes of blocks of different size in geological hazards

doi:10.1002/nag.3695

IMECH-IR > 流固耦合系统力学重点实验室

	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.
通讯作者	Pichler, Bernhard L. A.([email protected])
发表期刊	INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
	2024-01-28
页码	28
ISSN	0363-9061
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.
关键词	contact detection continuum-discontinuum element method irregular polyhedra mass movement
DOI	10.1002/nag.3695
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001150537300001
关键词[WOS]	RHEOLOGICAL PROPERTIES ; COMMON PLANE ; MODEL ; DEFORMATION ; FORMULATION ; ALGORITHM ; DYNAMICS ; REPOSE ; MOTION ; ANGLE
WOS研究方向	Engineering ; Materials Science ; Mechanics
WOS类目	Engineering, Geological ; Materials Science, Multidisciplinary ; Mechanics
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
项目资助者	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
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Pichler, Bernhard L. A.
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94259
专题	流固耦合系统力学重点实验室
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.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.