Investigation of the flow and force chain characteristics of metal powder in high-velocity compaction based on a discrete element method

2021 ◽  
Author(s):  
Zhi-Yang Xu ◽  
Fan-Jing Meng
Keyword(s):  
Discrete Element Method ◽  
Metal Powder ◽  
High Velocity ◽  
Discrete Element ◽  
Force Chain ◽  
High Velocity Compaction ◽  
Element Method

Numerical Simulation of Particle Flow for High Velocity Compaction Based on Discrete Element Method

2010 ◽  
Author(s):  
Wang Shuang ◽  
Zheng Zhoushun ◽  
Zheng Shan ◽  
Jane W. Z. Lu ◽  
Andrew Y. T. Leung ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Discrete Element Method ◽  
High Velocity ◽  
Discrete Element ◽  
Particle Flow ◽  
High Velocity Compaction ◽  
Element Method

scholarly journals Effect of Different Milling Media for Surface Coating on the Copper Powder Using Two Kinds of Ball Mills with Discrete Element Method Simulation

Coatings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 898
Author(s):  
Amgalan Bor ◽  
Battsetseg Jargalsaikhan ◽  
Jehyun Lee ◽  
Heekyu Choi
Keyword(s):  
Discrete Element Method ◽  
Ball Milling ◽  
Metal Powder ◽  
Copper Powder ◽  
Ball Mill ◽  
Discrete Element ◽  
High Energy ◽  
Ball Mills ◽  
Discrete Element Method Simulation ◽  
Element Method

This study investigated the effect of three different ball materials on the metal-based carbon nanotube (CNT) composites used as surface coatings on metal-powder to fabricate high-quality nanocomposites. The effect of ball material, different rotation speeds, and milling times on the coating characteristics of the metal-based nanocomposite were studied. The mechanical dry coating was used to fabricate CNT coatings on the surface of copper powder particles via two different ball milling machines such as a traditional ball mill and a stirred ball mill. We explored the effect of the milling media of the ball mill under different ball materials and ball sizes on the metal powder during the ball milling process with DEM simulation. Using discrete element method simulation to obtain the average velocity, force, and, kinetic energy of the milling media in a low and high energy ball mills.

Discrete element method to model cracking for two layer systems

TAPPI Journal ◽  
2019 ◽  
Vol 18 (2) ◽  
pp. 101-108
Author(s):  
Daniel Varney ◽  
Douglas Bousfield
Keyword(s):  
Discrete Element Method ◽  
Flexural Modulus ◽  
Single Layer ◽  
Discrete Element ◽  
Flexural Stress ◽  
Layer System ◽  
Three Point Bending ◽  
Moving Force ◽  
Coating Layers ◽  
Element Method

Cracking at the fold is a serious issue for many grades of coated paper and coated board. Some recent work has suggested methods to minimize this problem by using two or more coating layers of different properties. A discrete element method (DEM) has been used to model deformation events for single layer coating systems such as in-plain and out-of-plain tension, three-point bending, and a novel moving force picking simulation, but nothing has been reported related to multiple coating layers. In this paper, a DEM model has been expanded to predict the three-point bending response of a two-layer system. The main factors evaluated include the use of different binder systems in each layer and the ratio of the bottom and top layer weights. As in the past, the properties of the binder and the binder concentration are input parameters. The model can predict crack formation that is a function of these two sets of factors. In addition, the model can predict the flexural modulus, the maximum flexural stress, and the strain-at-failure. The predictions are qualitatively compared with experimental results reported in the literature.

DISCRETE ELEMENT METHOD FOR MOLECULAR SCALE VISUALIZATION OF MICRO-FLOWS

2007 ◽  
Vol 14 (1) ◽  
pp. 17-34 ◽  
Author(s):  
A. Munjiza ◽  
E. Rougier ◽  
N. W. M. John
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Molecular Scale ◽  
Micro Flows ◽  
Element Method

The Combined Finite-Discrete Element Method

2004 ◽  
Author(s):  
Ante Munjiza
Keyword(s):  
Discrete Element Method ◽  
Discrete Element ◽  
Element Method
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