GEOMETRICAL PROPERTIES OF DISORDERED PACKINGS OF HARD DISKS

被引：62

作者：

BIDEAU, D ^{[1
]}

GERVOIS, A ^{[1
]}

OGER, L ^{[1
]}

TROADEC, JP ^{[1
]}

机构：

[1] LAB CENT PONTS & CHAUSSEES,F-75732 PARIS 15,FRANCE

来源：

JOURNAL DE PHYSIQUE | 1986年 / 47卷 / 10期

关键词：

MATERIALS SCIENCE - Mathematical Models;

D O I：

10.1051/jphys:0198600470100169700

中图分类号：

学科分类号：

摘要：

We present experimental and theoretical results for geometrical properties of 2D packings of disks. We were mainly interested in the study of mixtures with disk size distribution which are of more practical interest than equal disks. We show the existence of a local order in the relative positions of grains with different sizes; this local order may modify the physical properties of the packing. An approximate theoretical expression for the packing fraction c of 2D close packings is given. It implies the knowledge of the average area of quadrilaterals of the network drawn from the real contacts only. For equal disk disordered packings, it yields the limit c equals PI **2/12 approximately 0. 822.

引用

页码：1697 / 1707

页数：11

共 24 条

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