Modeling a Flexible Ring Net with the Discrete Element Method

doi:10.1061/(ASCE)EM.1943-7889.0001707

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Modeling a Flexible Ring Net with the Discrete Element Method
	Zhu Zhuo-Hui 1; Yin Jian-Hua 1; Ouyang Chao-Jun 2; Tan Dao-Yuan 1; Qin Jie-Qiong 1
刊名	JOURNAL OF ENGINEERING MECHANICS
	2020
卷号	146 期号:2 页码:4019120
关键词	Flexible barrier Discrete element method Bond model Tensile test Rockfall
ISSN号	0733-9399
DOI	10.1061/(ASCE)EM.1943-7889.0001707
产权排序	2
文献子类	Article
英文摘要	Flexible barriers have been proven to be effective measures for mitigating natural hazards, such as rockfalls, gravel flows, and debris flows. This paper presents a new numerical ring model based on the discrete element method (DEM) to simulate a flexible ring net. The Edinburgh Bonded Particle Model is applied to create internal forces within a ring element. The mechanical behavior of a ring element was analyzed from measurements collected during quasi-static tensile tests. The systematic calibration approach of this ring model is described in detail. Two reduction factors related to the bond Young's modulus and the bond radius are proposed to effectively adjust the bending and axial stiffnesses of the ring element. With calibrated DEM parameters from the tensile tests, the ring model is validated by reproducing these tensile tests under different boundary conditions. Finally, a three-dimensional DEM model is established for modeling the rockfall impact on a flexible ring net. A comparison between the existing test data and simulation results reveals that the new ring model can accurately reproduce the response of a flexible ring net under both static and dynamic conditions.
电子版国际标准刊号	1943-7889
资助项目	Research Institute for Sustainable Urban Development of the Hong Kong Polytechnic University (PolyU) ; National State Key Project 973 grant from Ministry of Science and Technology of the People's Republic of China[2014CB047000] ; National State Key Project 973 grant from Ministry of Science and Technology of the People's Republic of China[2014CB047001] ; Collaborative Research Fund (CRF) project from the Research Grants Council (RGC) of Hong Kong Special Administrative Region Government of China[PolyU12/CRF/13E] ; PolyU grants[1-ZVCR] ; PolyU grants[1-ZVEH] ; PolyU grants[4-BCAW] ; PolyU grants[4-BCB1] ; PolyU grants[5-ZDAF] ; PolyU grants[4-BCAU] ; Research Centre for Urban Hazards Mitigation of Faculty of Construction and Environment of PolyU
WOS关键词	DESIGN
WOS研究方向	Engineering
语种	英语
出版者	ASCE-AMER SOC CIVIL ENGINEERS
WOS记录号	WOS:000502781700011
资助机构	Research Institute for Sustainable Urban Development of the Hong Kong Polytechnic University (PolyU) ; National State Key Project 973 grant from Ministry of Science and Technology of the People's Republic of China ; Collaborative Research Fund (CRF) project from the Research Grants Council (RGC) of Hong Kong Special Administrative Region Government of China ; PolyU grants ; Research Centre for Urban Hazards Mitigation of Faculty of Construction and Environment of PolyU
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/33554]
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	Yin Jian-Hua
作者单位	1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong 999077, Peoples R China; 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhu Zhuo-Hui,Yin Jian-Hua,Ouyang Chao-Jun,et al. Modeling a Flexible Ring Net with the Discrete Element Method[J]. JOURNAL OF ENGINEERING MECHANICS,2020,146(2):4019120.
APA	Zhu Zhuo-Hui,Yin Jian-Hua,Ouyang Chao-Jun,Tan Dao-Yuan,&Qin Jie-Qiong.(2020).Modeling a Flexible Ring Net with the Discrete Element Method.JOURNAL OF ENGINEERING MECHANICS,146(2),4019120.
MLA	Zhu Zhuo-Hui,et al."Modeling a Flexible Ring Net with the Discrete Element Method".JOURNAL OF ENGINEERING MECHANICS 146.2(2020):4019120.