Acoustic probing of the jamming transition in an unconsolidated granular medium

被引：43

作者：

Jacob, X. ^{[1
]}

Aleshin, V. ^{[1
]}

Tournat, V. ^{[1
]}

Leclaire, P. ^{[2
]}

Lauriks, W. ^{[3
]}

Gusev, V. E. ^{[4
]}

机构：

[1] Univ Maine, CNRS, Acoust Lab, UMR 6613, F-72085 Le Mans, France

[2] Univ Bourgogne, ISAT, Lab Rech Mecan & Acoust, F-58000 Nevers, France

[3] Katholieke Univ Leuven, Lab Akoestiek Tehrm Fys, BE-3001 Heverlee, Belgium

[4] Univ Maine, CNRS, Lab Phys Etat Condense, UMR 6087, F-72085 Le Mans, France

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.100.158003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experimentally determined dispersion relations for acoustic waves guided along the mechanically free surface of an unconsolidated granular packed structure provide information on the elasticity of granular media at very low pressures that are naturally controlled by the gravitational acceleration and the depth beneath the surface. The experiments confirm recent theoretical predictions that relaxation of the disordered granular packing through nonaffine motion leads to a peculiar scaling of shear rigidity with pressure near the jamming transition corresponding to zero pressure.

引用

页数：4

共 26 条

[1] Acoustic modes propagating along the free surface of granular media [J].