Molecular dynamics simulation of complex particles in three dimensions and the study of friction due to nonconvexity

Galindo-Torres, S. A., Alonso-Marroquin, F., Wang, Y. C., Pedroso, D. and Muñoz Castaño , J. D. (2009) Molecular dynamics simulation of complex particles in three dimensions and the study of friction due to nonconvexity. Physical Review E, 79 6: 060301.1-060301.4. doi:10.1103/PhysRevE.79.060301

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Author Galindo-Torres, S. A.
Alonso-Marroquin, F.
Wang, Y. C.
Pedroso, D.
Muñoz Castaño , J. D.
Title Molecular dynamics simulation of complex particles in three dimensions and the study of friction due to nonconvexity
Journal name Physical Review E   Check publisher's open access policy
ISSN 1539-3755
1550-2376
Publication date 2009-06-01
Sub-type Article (original research)
DOI 10.1103/PhysRevE.79.060301
Open Access Status File (Publisher version)
Volume 79
Issue 6
Start page 060301.1
End page 060301.4
Total pages 4
Editor Gary S. Grest
Margaret Malloy
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2010
Language eng
Subject C1
970102 Expanding Knowledge in the Physical Sciences
0299 Other Physical Sciences
Abstract We investigate the macroscopic properties of frictionless nonconvex particles using molecular dynamics. The calculations are based on a simple and efficient method to simulate complex-shaped interacting bodies. The particle shape is represented by Minkowski operators. A multicontact time-continuous interaction between bodies is derived using simple concepts of computational geometry. Three-dimensional simulations of hopper flow show that the nonconvexity of the particles strongly affects the jamming on granular flow. Also the model allows the representation of complex bodies with rough surfaces as in friction studies and the reproduction of a wide range of friction and dilatancy angles as in true triaxial tests.
Keyword Model
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article number 060301

 
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Created: Thu, 03 Sep 2009, 17:52:36 EST by Mr Andrew Martlew on behalf of Earth Systems Science Computational Centre