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Micro-deformation mechanism of granular materials under different boundary conditions based on DEM simulation Zhaoxia TONG1,a ,Min ZHOU1,b and Yangping YAO1,c 1School of Transportation Science and Engineering, Beihang University, Beijing,China atongzx@buaa.edu.cn, blwmdelp@foxmail.com, cypyao@buaa.edu.cn Keywords: Boundary condition; Micromechanics; Discrete element method (DEM); Granular material; Abstract.
The micro-deformation mechanism of anisotropic granular materials under different boundary conditions was analyzed in detail.
Meanwhile, particle rotation plays a dominant role in the development of shear bands in granular materials.
The mechanical properties of granular materials were affected greatly by the long axis orientation of particles.
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Materials Ordinary portland cement P.O42.5 was used, produced by Tuotang cement company, Nanjing.
Acknowledgements This work was financially supported by Science Project of JiangsuProvincial Communications Department (2013-C-04).
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Recent research on biological materials and bioartificial systems has created one of the most dynamic field at the confluence of physical sciences, molecular engineering, cell biology, materials sciences, biotechnology and (nano)medicine.
Such materials could be used as biomaterials for clinical applications, or as novel efficient energy-absorbing materials.
Coupling strategies of modeling biological, artificial and bioartificial systems at different length and time scales is of great importance in quite diverse fields of science and technology, including medicine, biology, biotechnology, tissue engineering and materials sciences.
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Similar materials were selected using both techniques.
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In this paper, we focus on the need for the study of interface characteristics between different reinforced materials and clay, by making indoor drawing test with two kinds of reinforced materials commonly used in engineering and the same clay.
With the rapid development of Reinforced earth technology, different reinforced materials are also gradually applied to reinforced earth, In this paper, we focus on the need for the study of interface characteristics between different reinforced materials and clay, by making a indoor drawing test with two kinds of reinforced materials commonly used in engineering and the same clay.
The two kinds of reinforced materials drawing test results is shown in table 3.
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Building materials constitute about 60%-70% of the total cost of construction.
Reduction in the use of conventional materials may not be possible; therefore, an alternative solution to use low cost materials would reduce the overall construction cost of a building.
Thus the alternative building materials which are to be replaced by the conventional materials should be made from waste or locally available materials to minimize environmental pollution and reduce overall construction cost [5] .
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In particular, ZnO and SnO2 selected as the initial materials.
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