Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles
Evaluating the repose angle of granular materials under different kinds of gravitational conditions is essential for in situ resource exploration on surfaces of other Earth-like planets in the next decades. The forming process of particulate pile under different kinds of gravitational accelerations...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/8513149 |
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| author | H. Chen Y. X. Chen Q. S. Wei Y. S. Shi |
| author_facet | H. Chen Y. X. Chen Q. S. Wei Y. S. Shi |
| author_sort | H. Chen |
| collection | DOAJ |
| description | Evaluating the repose angle of granular materials under different kinds of gravitational conditions is essential for in situ resource exploration on surfaces of other Earth-like planets in the next decades. The forming process of particulate pile under different kinds of gravitational accelerations was simulated by three-dimensional discrete element method (DEM), where the particulate piles composed of normally distributed particles and lognormally distributed particles were considered, respectively. The effects of gravity on the repose angle and contact forces of the particulate pile were investigated. The results show that, for particulate pile composed of normally or lognormally distributed particles, the effect of gravity force on the repose angle is ignorable. For particles with a certain kind of size distribution, the distribution functions of normalized contact forces in the particulate pile under different gravity accelerations show to be in mutual coincidence. No obvious effect of the particle size distribution on the relation between the gravity acceleration and repose angle is observed. |
| format | Article |
| id | doaj-art-292f258050c94016b1872e0b95d028b8 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-292f258050c94016b1872e0b95d028b82025-02-03T01:10:05ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742019-01-01201910.1155/2019/85131498513149Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed ParticlesH. Chen0Y. X. Chen1Q. S. Wei2Y. S. Shi3School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaCCCC Rail Transit Consultants Co. Ltd, Wuhan branch, Wuhan 430056, ChinaSchool of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaEvaluating the repose angle of granular materials under different kinds of gravitational conditions is essential for in situ resource exploration on surfaces of other Earth-like planets in the next decades. The forming process of particulate pile under different kinds of gravitational accelerations was simulated by three-dimensional discrete element method (DEM), where the particulate piles composed of normally distributed particles and lognormally distributed particles were considered, respectively. The effects of gravity on the repose angle and contact forces of the particulate pile were investigated. The results show that, for particulate pile composed of normally or lognormally distributed particles, the effect of gravity force on the repose angle is ignorable. For particles with a certain kind of size distribution, the distribution functions of normalized contact forces in the particulate pile under different gravity accelerations show to be in mutual coincidence. No obvious effect of the particle size distribution on the relation between the gravity acceleration and repose angle is observed.http://dx.doi.org/10.1155/2019/8513149 |
| spellingShingle | H. Chen Y. X. Chen Q. S. Wei Y. S. Shi Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles International Journal of Aerospace Engineering |
| title | Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles |
| title_full | Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles |
| title_fullStr | Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles |
| title_full_unstemmed | Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles |
| title_short | Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles |
| title_sort | effect of gravity on repose angle and contact forces of particulate pile composed of non monodispersed particles |
| url | http://dx.doi.org/10.1155/2019/8513149 |
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