Research Papers

Dynamic Simulation of Particle Packing With Different Size Distributions

[+] Author and Article Information
Tao Jia, J. K. Chen

Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211

Yuwen Zhang1

Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211zhangyu@missouri.edu


Corresponding author.

J. Manuf. Sci. Eng 133(2), 021011 (Mar 15, 2011) (4 pages) doi:10.1115/1.4003614 History: Received December 11, 2009; Revised January 27, 2011; Published March 15, 2011; Online March 15, 2011

Distinct element method is employed to simulate packing of spherical particles with different size distributions: equal-size, bimodal, and Gaussian. During the packing process, particles collide with their neighbors and bounce back and forth. Since the collision is inelastic, dissipative force exits, leading to energy loss in every collision. The interparticle contact force is calculated based on the nonlinear Hertz theory. The packing structures quantified by porosity and the coordination number under different particle size distributions are discussed.

Copyright © 2011 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 3

Packing with Gaussian distribution (d=1–15 mm, mean=8 mm, and deviation=5)

Grahic Jump Location
Figure 1

Packing with equal-size distribution (d=5 mm)

Grahic Jump Location
Figure 2

Packing with bimodal distribution (d1=5 mm, d2=15 mm, and n1:n2=8:2)



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