0
Research Papers

Effects of Contact Force Model and Size Distribution on Microsized Granular Packing

[+] Author and Article Information
Xin Dou, Yijin Mao

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

Yuwen Zhang

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

1Corresponding author.

Manuscript received May 31, 2013; final manuscript received November 1, 2013; published online January 3, 2014. Assoc. Editor: Yong Huang.

J. Manuf. Sci. Eng 136(2), 021003 (Jan 03, 2014) (9 pages) Paper No: MANU-13-1241; doi: 10.1115/1.4025969 History: Received May 31, 2013; Revised November 01, 2013

Granular packing of microsized particles with different size distributions and contact force models is studied using discrete element method (DEM). Three kinds of size distributions, monosized, uniform, and Gaussian, with mean diameter of 50, 60, and 70 μm are studied. Two aspects of microscale particle packing issues are addressed: one is the importance of van der Waals force when the particle size approaching to microscale, the other one is the structure variation caused by different contact force models. The results indicate that compared with contact force, the van der Waals force contributes very insignificantly to the final packing structure. The packing structures obtained using two different force models are similar to each other. The effects of particle size and its distribution on the packing structure are more significant than the force model.

FIGURES IN THIS ARTICLE
<>
Copyright © 2014 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Fig. 6

Van der Waals force distribution Gaussian distribution particles

Grahic Jump Location
Fig. 5

Van der Waals force distribution for uniform distribution particles

Grahic Jump Location
Fig. 4

Van der Waals force distribution for monosized particles

Grahic Jump Location
Fig. 3

RDF for Gaussian distribution particles

Grahic Jump Location
Fig. 2

RDF for uniform distribution particles

Grahic Jump Location
Fig. 1

RDF for monosized particles

Grahic Jump Location
Fig. 7

Contact force distribution for monosized particles

Grahic Jump Location
Fig. 8

Contact force distribution for uniform distribution particles

Grahic Jump Location
Fig. 9

Contact force distribution for Gaussian distribution particles

Grahic Jump Location
Fig. 10

Resultant force distributions

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In