On the fabric tensor of polydisperse granular materials in 2D

被引:59
作者
Madadi, M
Tsoungui, O
Lätzel, M
Luding, S [1 ]
机构
[1] Delft Univ Technol, DelftChemTech, Julianalaan 136, NL-2628 BL Delft, Netherlands
[2] Inst Computat Phys, D-70569 Stuttgart, Germany
[3] Inst Adv Studies Basic Sci, Zanjan, Iran
关键词
fabric tensor; discrete element simulation; bidisperse and polydisperse size distributions;
D O I
10.1016/j.ijsolstr.2003.12.005
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The trace of the fabric tensor in static, isotropic, two-dimensional, frictionless, polydisperse granular materials is examined theoretically and numerically. In the monodisperse case, the trace of the fabric tensor equals the product of volume fraction and coordination number-thus the fabrics trace can be seen as contact density. For various size distributions, we obtain a correction factor to the monodisperse observation, which involves the first three moments of the particle size distribution function. The theoretical prediction is found to be in good agreement with numerical simulations of static frictionless systems. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2563 / 2580
页数:18
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