IMHE OpenIR  > 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-Hui1; Yin Jian-Hua1; Ouyang Chao-Jun2; Tan Dao-Yuan1; Qin Jie-Qiong1
Corresponding AuthorYin, Jian-Hua(cejhyin@polyu.edu.hk)
2020
Source PublicationJOURNAL OF ENGINEERING MECHANICS
ISSN0733-9399
EISSN1943-7889
Volume146Issue:2Pages:4019120
SubtypeArticle
Contribution Rank2
AbstractFlexible 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.
KeywordFlexible barrier Discrete element method Bond model Tensile test Rockfall
DOI10.1061/(ASCE)EM.1943-7889.0001707
Indexed BySCI
WOS KeywordDESIGN
Language英语
Funding ProjectResearch 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 Research AreaEngineering
WOS SubjectEngineering, Mechanical
WOS IDWOS:000502781700011
Funding OrganizationResearch 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
PublisherASCE-AMER SOC CIVIL ENGINEERS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33554
Collection山地灾害与地表过程重点实验室
Corresponding AuthorYin Jian-Hua
Affiliation1.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
Recommended Citation
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.
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