CLC number: TU43
On-line Access:
Received: 2007-11-14
Revision Accepted: 2008-02-27
Crosschecked: 0000-00-00
Cited: 9
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Zhi-yi HUANG, Zhong-xuan YANG, Zhen-yu WANG. Discrete element modeling of sand behavior in a biaxial shear test[J]. Journal of Zhejiang University Science A, 2008, 9(9): 1176-1183.
@article{title="Discrete element modeling of sand behavior in a biaxial shear test",
author="Zhi-yi HUANG, Zhong-xuan YANG, Zhen-yu WANG",
journal="Journal of Zhejiang University Science A",
volume="9",
number="9",
pages="1176-1183",
year="2008",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0720059"
}
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%T Discrete element modeling of sand behavior in a biaxial shear test
%A Zhi-yi HUANG
%A Zhong-xuan YANG
%A Zhen-yu WANG
%J Journal of Zhejiang University SCIENCE A
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%P 1176-1183
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%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0720059
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T1 - Discrete element modeling of sand behavior in a biaxial shear test
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A1 - Zhong-xuan YANG
A1 - Zhen-yu WANG
J0 - Journal of Zhejiang University Science A
VL - 9
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SP - 1176
EP - 1183
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0720059
Abstract: The mechanical behavior of sand is very complex, and depends on factors including confining pressure, density, and drainage condition. A soil mass can be contractive or dilative when subjected to shear loading, and eventually reaches an ultimate state, referred to as the critical state in soil mechanics. Conventional approach to explore the mechanical behavior of sand mainly relies on the experimental tests in laboratory. This paper gives an alternative view to this subject using discrete element method (DEM), which has attracted much attention in recent years. The implementation of the DEM is carried out by a series of numerical tests on granular assemblies with varying initial densities and confining pressures, under different test configurations. The results demonstrate that such numerical simulations can produce correct responses of the sand behavior in general, including the critical state response, as compared to experimental observations. In addition, the DEM can further provide details of the microstructure evolutions during shearing processes, and the resulting induced anisotropy can be fully captured and quantified in the particle scale.
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