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Volume 38 Issue 5
Oct.  2020
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ZHANG Lu-dong, LIU Jun, LUO Xiao-long, ZHANG Chao, LIN Li, ZHOU Chun, WANG Hai-lu. High velocity compaction simulation and dynamic mechanical analysis of particles based on discrete element method[J]. Powder Metallurgy Technology, 2020, 38(5): 350-356, 362. DOI: 10.19591/j.cnki.cn11-1974/tf.2019040013
Citation: ZHANG Lu-dong, LIU Jun, LUO Xiao-long, ZHANG Chao, LIN Li, ZHOU Chun, WANG Hai-lu. High velocity compaction simulation and dynamic mechanical analysis of particles based on discrete element method[J]. Powder Metallurgy Technology, 2020, 38(5): 350-356, 362. DOI: 10.19591/j.cnki.cn11-1974/tf.2019040013
shu

High velocity compaction simulation and dynamic mechanical analysis of particles based on discrete element method

  • 1.

    Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China

  • 2.

    Part Rolling Key Laboratory of Zhejiang Province, Ningbo University, Ningbo 315211, China

  • 3.

    MOE Key Laboratory of Impact and Safety Engineering, Ningbo University, Ningbo 315211, China

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  • Corresponding author:

    LIU Jun, E-mail: liujun@nbu.edu.cn

  • Received Date: April 21, 2019
    Graphical Abstract
    • Abstract
  • Three-dimensional discrete element method (DEM) was applied to simulate the dynamic response of aluminum powders under the high velocity compaction (HVC), and the results were compared with the experimental data. In the results, the numerical simulation is basically the same as the experiment results. The powder disturbance shows the irregular arc distribution during the high velocity compaction. There will be an uneven phenomenon of overall force in the initial stage of compaction; as the compaction keeps going, the uneven problem will be improved, and the powders exhibit the strong self-organization. In the single-pass loading process, the particle impact will occur repeatedly; in the densification stage, the upper particles will deform and rearrange, and the middle and lower layers will be dominated by the granular rearrangement; in the deformation stage, the force of all the particles is basically the same.
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    • References (20)
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