Attenuation of pressure dips underneath piles of spherocylindersElectronic supplementary information (ESI) available. See DOI: 10.1039/c8sm00280k
The discrete element method (DEM) was used to simulate the piling of rod-like (elongated sphero-cylindrical) particles, mainly focusing on the effect of particle shape on the structural and force properties of the piles. In this work, rod-like particles of different aspect ratios were discharged on...
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Format | Journal Article |
Language | English |
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30.05.2018
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Abstract | The discrete element method (DEM) was used to simulate the piling of rod-like (elongated sphero-cylindrical) particles, mainly focusing on the effect of particle shape on the structural and force properties of the piles. In this work, rod-like particles of different aspect ratios were discharged on a flat surface to form wedge-shaped piles. The surface properties of the piles were characterized in terms of angle of repose and stress at the bottom of the piles. The results showed that the rise of the angle of repose became slower with the increase of particle aspect ratio. The pressure dip underneath the piles reached the maximum when the particle aspect ratio was around 1.6, beyond which the pressure dip phenomenon became attenuated. Both the pressure dip and the shear stress dip were quantitatively examined. The structure and forces inside the piles were further analyzed to understand the change in pressure dip, indicating that "bridging" or "arching" structures within the piles were the cause of the pressure dip.
The discrete element method (DEM) was used to simulate the piling of rod-like (elongated sphero-cylindrical) particles, mainly focusing on the effect of particle shape on the structural and force properties of the piles. |
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AbstractList | The discrete element method (DEM) was used to simulate the piling of rod-like (elongated sphero-cylindrical) particles, mainly focusing on the effect of particle shape on the structural and force properties of the piles. In this work, rod-like particles of different aspect ratios were discharged on a flat surface to form wedge-shaped piles. The surface properties of the piles were characterized in terms of angle of repose and stress at the bottom of the piles. The results showed that the rise of the angle of repose became slower with the increase of particle aspect ratio. The pressure dip underneath the piles reached the maximum when the particle aspect ratio was around 1.6, beyond which the pressure dip phenomenon became attenuated. Both the pressure dip and the shear stress dip were quantitatively examined. The structure and forces inside the piles were further analyzed to understand the change in pressure dip, indicating that "bridging" or "arching" structures within the piles were the cause of the pressure dip.
The discrete element method (DEM) was used to simulate the piling of rod-like (elongated sphero-cylindrical) particles, mainly focusing on the effect of particle shape on the structural and force properties of the piles. |
Author | Zhao, Bo An, Xizhong Gou, Dazhao Zhao, Haiyang Yang, Runyu |
AuthorAffiliation | School of Materials Science and Engineering University of New South Wales School of Metallurgy Northeastern University |
AuthorAffiliation_xml | – name: Northeastern University – name: University of New South Wales – name: School of Materials Science and Engineering – name: School of Metallurgy |
Author_xml | – sequence: 1 givenname: Haiyang surname: Zhao fullname: Zhao, Haiyang – sequence: 2 givenname: Xizhong surname: An fullname: An, Xizhong – sequence: 3 givenname: Dazhao surname: Gou fullname: Gou, Dazhao – sequence: 4 givenname: Bo surname: Zhao fullname: Zhao, Bo – sequence: 5 givenname: Runyu surname: Yang fullname: Yang, Runyu |
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DOI | 10.1039/c8sm00280k |
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Title | Attenuation of pressure dips underneath piles of spherocylindersElectronic supplementary information (ESI) available. See DOI: 10.1039/c8sm00280k |
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