Force fluctuations in a pushed granular material

被引：22

作者：

Nouguier, C ^{[1
]}

Bohatier, C ^{[1
]}

Moreau, JJ ^{[1
]}

Radjai, F ^{[1
]}

机构：

[1] Univ Montpellier 2, Lab Mecan & Genie Civil, F-34095 Montpellier 5, France

来源：

GRANULAR MATTER | 2000年 / 2卷 / 04期

关键词：

numerical simulations; contact dynamics; force fluctuations; statistical analysis;

D O I：

10.1007/PL00010912

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyse the time evolution of stresses in a. noncohesive granular bed cut by the motion of a tool. Our numerical simulations both in two and three dimensions reveal large fluctuations of the force acting on the tool. These fluctuations have a decreasing exponential distribution. We find that, ill spite of fluctuations,, the mean force is well fitted by an analytical form obtained from a limit analysis with Coulomb's failure criterion.

引用

页码：171 / 178

页数：8

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