Potential particles: a method for modelling non-circular particles in DEM

被引：121

作者：

Houlsby, G. T. ^{[1
]}

机构：

[1] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

来源：

COMPUTERS AND GEOTECHNICS | 2009年 / 36卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

DEM; Non-circular particles;

D O I：

10.1016/j.compgeo.2009.03.001

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Options for defining non-circular (or non-spherical) particles in DEM codes are briefly reviewed before introducing a new concept: potential particles. This method can be used to define convex particles with a wide variety of shapes, from almost polygonal to circular. It is readily applicable in both two and three dimensions. Although contact detection and overlap calculations are not as fast as for circular particles, they can nevertheless be made sufficiently simple and fast for implementation in DEM codes. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：953 / 959

页数：7

共 8 条

[1] Crammond E., 2007, SQUARING CIRCLE ARBI
[2] Jensen RP, 1999, INT J NUMER ANAL MET, V23, P531, DOI 10.1002/(SICI)1096-9853(199905)23:6<531::AID-NAG980>3.0.CO
[3] 2-V
[4] The modelling of particle systems with real shapes
Latham, JP
Munjiza, A
[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2004, 362 (1822): : 1953 - 1972
[5] A random method for simulating loose packs of angular particles using tetrahedra
Latham, JP
Lu, Y
Munjiza, A
[J]. GEOTECHNIQUE, 2001, 51 (10): : 871 - 879
[6] Shi G., 1988, Discontinuous deformation analysis - A new numerical model for the statics and dynamics of block systems
[7] Numerical and experimental investigations of the flow of powder into a confined space
Wu, CY
Cocks, ACF
[J]. MECHANICS OF MATERIALS, 2006, 38 (04) : 304 - 324
[8] Steady particulate flows in a horizontal rotating cylinder
Yamane, K
Nakagawa, M
Altobelli, SA
Tanaka, T
Tsuji, Y
[J]. PHYSICS OF FLUIDS, 1998, 10 (06) : 1419 - 1427

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