Micromechanical simulation and analysis of one-dimensional vibratory sphere packing

被引：118

作者：

An, XZ ^{[1
]}

Yang, RY ^{[1
]}

Dong, KJ ^{[1
]}

Zou, RP ^{[1
]}

Yu, AB ^{[1
]}

机构：

[1] Univ New S Wales, Ctr Simulat & Modeling Particulate Syst, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.95.205502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a numerical method capable of reproducing the densification process from the so-called random loose to dense packing of uniform spheres under vertical vibration. The effects of vibration amplitude and frequency are quantified, and the random close packing is shown to be achieved only if both parameters are properly controlled. Two densification mechanisms are identified: pushing filling by which the contact between spheres is maintained and jumping filling by which the contact between particles is periodically broken. In general, pushing filling occurs when the vibration intensity is low and jumping filling becomes dominant when the vibration intensity is high.

引用

页数：4

共 36 条

[1] VIBRATORY COMPACTION .I. COMPACTION OF SPHERICAL SHAPES [J].