Results 21 to 30 of about 75,364 (297)

Effect of Gravity on Repose Angle and Contact Forces of Particulate Pile Composed of Non-monodispersed Particles

International Journal of Aerospace Engineering, 2019
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.
H. Chen, Y. X. Chen, Q. S. Wei, Y. S. Shi   +3 more
doaj   +1 more source

Round robin test on angle of repose: DEM simulation results collected from 16 groups around the world

Soils and Foundations, 2023
The round robin test (the simultaneous analysis of the same problem) is a method to investigate the variance and sensitivity of results provided by different analysts for a given problem and the reliability of the particular software used by each group ...
Hidetaka Saomoto, Naotaka Kikkawa, Shuji Moriguchi, Yukio Nakata, Masahide Otsubo, Vasileios Angelidakis, Yi Pik Cheng, Kevin Chew, Gabriele Chiaro, Jérôme Duriez, Sacha Duverger, Joaquín Irazábal González, Mingjing Jiang, Yohei Karasaki, Akiko Kono, Xintong Li, Zhuyuan Lin, Asen Liu, Sadegh Nadimi, Hitoshi Nakase, Daisuke Nishiura, Utsa Rashique, Hiroyuki Shimizu, Kumpei Tsuji, Takashi Watanabe, Xiaomin Xu, Mourad Zeghal   +26 more
doaj   +1 more source

Experimental Study of the Angle of Repose of Coral Sands

Journal of Marine Science and Engineering
The angle of repose is a fundamental parameter for assessing the stability of coral reefs. However, predictive models for this angle are currently lacking.
Zhen Yao, Jie Chen, Changbo Jiang, Zhiyuan Wu, Bin Deng, Yuannan Long, Hongtao Zou, Jinwei Zhang, Runze Bai   +8 more
doaj   +1 more source

Determination of Material and Interaction Properties of Granular Fertilizer Particles Using DEM Simulation and Bench Testing

Agriculture, 2023
The discrete element method (DEM) is an effective tool for obtaining qualitative and quantitative information on particle motion, which aids in the design and optimization of agricultural equipment structures.
Xiaolong Lei, Wencheng Wu, Xuan Deng, Tao Li, Hongnan Liu, Jinyue Guo, Ju Li, Peixu Zhu, Ke Yang   +8 more
doaj   +1 more source

Jamming transition of a granular pile below the angle of repose

, 2003
We study experimentally the relaxation towards mechanical equilibrium of a granular pile which has just experienced an avalanche and discuss it in the more general context of the granular jamming transition.
Bertin, E. M., Dauchot, O., Deboeuf, S., Lajeunesse, E.   +3 more
core   +3 more sources

DEM simulation of soil-tool interaction under extraterrestrial environmental effects [PDF]

, 2017
In contrast to terrestrial environment, the harsh lunar environment conditions include lower gravity acceleration, ultra-high vacuum and high (low) temperature in the daytime (night-time).
Arroyo Alvarez de Toledo, Marcos, Jiang, Mingjing, Rodríguez Dono, Alfonso, Xi, Banglu   +3 more
core   +2 more sources

Simulation Parameter Calibration and Experimental Study of a Discrete Element Model of Cotton Precision Seed Metering

Agriculture, 2022
To improve the accuracy of the parameters used in the discrete element simulation test, this study calibrated the simulation parameters of cotton seeds by combining a physical test and simulation test.
Shenghe Bai, Yanwei Yuan, Kang Niu, Liming Zhou, Bo Zhao, Liguo Wei, Lijing Liu, Shi Xiong, Zenglu Shi, Yihua Ma, Yuankun Zheng, Gaoyong Xing   +11 more
doaj   +1 more source

Dynamics at the angle of repose: jamming, bistability, and collapse

, 2004
When a sandpile relaxes under vibration, it is known that its measured angle of repose is bistable in a range of values bounded by a material-dependent maximal angle of stability; thus, at the same angle of repose, a sandpile can be stationary or ...
Anita Mehta, Bagnold R A, Brown R L, Donsker M D, Donsker M D, Edwards S F, J M Luck, Luck J M, Luck J M, Luczka J, Luczka J, Luczka J, Mehta A, Mehta A, Nagel S R, Reynolds O, Smoluchowski M V, van Kampen N G, Wang M C, Zwillinger D   +19 more
core   +3 more sources

Influence of Crushed Rock Properties on the Productivity of a Hydraulic Excavator

Applied Sciences, 2021
Among many factors that influence an excavator’s performance and productivity, the volume of the bucket load and duration of the excavator working cycle are crucial.
Trpimir Kujundžić, Mario Klanfar, Tomislav Korman, Zlatko Briševac   +3 more
doaj   +1 more source

Piling and avalanches of magnetized particles

, 2004
We performed computer simulations based on a two-dimensional Distinct Element Method to study granular systems of magnetized spherical particles. We measured the angle of repose and the surface roughness of particle piles, and we studied the effect of ...
D. E. Wolf, G. H. Ristow, J. Kertész, L. D. Landau, P. A. Cundall, S. Fazekas, S. Luding   +6 more
core   +1 more source