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Analysis of soil-structural interface behavior using three-dimensional DEM simulations
Xue‐Ying Jing1; Wan‐Huan Zhou1,2; Hua‐Xiang Zhu1; Zhen‐Yu Yin3; Yangmin Li4
2017-09-21
Source PublicationINTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
ISSN0363-9061
Volume42Issue:2Pages:339-357
Abstract

The shear behavior at the interface between the soil and a structure is investigated at the macroscale and particle-scale levels using a 3-dimensional discrete element method (DEM). The macroscopic mechanical properties and microscopic quantities affected by the normalized interface roughness and the loading parameters are analyzed. The macro-response shows that the shear strength of the interface increases as the normalized roughness of the interface increases, and stress softening and dilatancy of the soil material are observed in the tests that feature rough interfaces. The particle-scale analysis illustrates that a localized band characterized by intense shear deformation emerges from the contact plane and gradually expands as shearing progresses before stabilizing at the residual stress state. The thickness of the localized band is affected by the normalized roughness of the interface and the normal stress, which ranges between 4 and 5 times that of the median grain diameter. A thicker localized band is formed when the soil has a rough shearing interface. After the localized band appears, the granular material structuralizes into 2 regions: the interface zone and the upper zone. The mechanical behavior in the interface zone is representative of the interface according to the local average stress analysis. Certain microscopic quantities in the interface zone are analyzed, including the coordination number and the material fabric. Shear at the interface creates an anisotropic material fabric and leads to the rotation of the major principal stress.

KeywordDiscrete Element Method Fabric Anisotropy Localized Band Soil-structural Interface
DOI10.1002/nag.2745
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Materials Science ; Mechanics
WOS SubjectEngineering, Geological ; Materials Science, Multidisciplinary ; Mechanics
WOS IDWOS:000419501400007
PublisherWILEY
The Source to ArticleWOS
Fulltext Access
Citation statistics
Cited Times [WOS]:40   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorWan‐Huan Zhou
Affiliation1.Department of Civil and EnvironmentalEngineering, Faculty of Science andTechnology, University of Macau, Macau,China
2.UMacau Research Institute, Zhuhai,Guangdong, China
3.Research Institute of Civil Engineeringand Mechanics (GeM), UMR CNRS 6183,Ecole Centrale de Nantes, France
4.Department of Industrial and Systems Engineering, Hong Kong PolytechnicUniversity, Hong Kong, China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Xue‐Ying Jing,Wan‐Huan Zhou,Hua‐Xiang Zhu,et al. Analysis of soil-structural interface behavior using three-dimensional DEM simulations[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2017,42(2):339-357.
APA Xue‐Ying Jing,Wan‐Huan Zhou,Hua‐Xiang Zhu,Zhen‐Yu Yin,&Yangmin Li.(2017).Analysis of soil-structural interface behavior using three-dimensional DEM simulations.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,42(2),339-357.
MLA Xue‐Ying Jing,et al."Analysis of soil-structural interface behavior using three-dimensional DEM simulations".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 42.2(2017):339-357.
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