Force correlations and arch formation in granular assemblies

被引：38

作者：

Nicodemi, M

机构：

[1] Univ Naples Federico II, Dipartimento Fis, I-80125 Naples, Italy

[2] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy

[3] Ecole Super Phys & Chim Ind, PMMH, F-75231 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.80.1340

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the context of a simple microscopic schematic scalar model we study the effects of spatial correlations in force transmission in granular assemblies. We show that the parameters of the normalized weight distribution function, P(nu) similar to nu(alpha) exp(-nu/phi), strongly depend on the spatial extensions, xi(V), of such correlations. In particular , we evaluate the functions phi(xi(V)) and alpha(xi(V)) . If xi(V) --> infinity then phi similar to xi(V) and weights are power law distributed.

引用

页码：1340 / 1343

页数：4