Granular packings and fault zones

被引：68

作者：

Åström, JA

Herrmann, HJ

Timonen, J

机构：

[1] Univ Jyvaskyla, Dept Phys, FIN-40531 Jyvaskyla, Finland

[2] Univ Stuttgart, D-70569 Stuttgart, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.84.638

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The failure of a two-dimensional packing of elastic grains is analyzed using a numerical model. The packing fails through formation of shear bands or faults. During failure there is a separation of the system into two grain-packing states. In a sheer band, local "rotating bearings" are spontaneously formed. The bearings state is favored in a shear band because it has a low stiffness against shearing. The "seismic activity" distribution in the packing has the same characteristics as that of the earthquake distribution in tectonic faults. The directions of the principal stresses in a bearing are reminiscent of those found at the San Andreas Fault.

引用

页码：638 / 641

页数：4

共 15 条

[1] Fragmentation of grains in a two-dimensional packing
Astrom, JA
Herrmann, HJ
[J]. EUROPEAN PHYSICAL JOURNAL B, 1998, 5 (03) : 551 - 554
[2] OBSERVATIONS ON THE EFFECTS OF PARTICLE ROTATIONS ON THE FAILURE OF IDEALIZED GRANULAR-MATERIALS
BARDET, JP
[J]. MECHANICS OF MATERIALS, 1994, 18 (02) : 159 - 182
[3] SPACE-FILLING BEARINGS
HERRMANN, HJ
MANTICA, G
BESSIS, D
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (26) : 3223 - 3226
[4] Hertz H., 1882, J F R REINE ANGEW, V92, P136
[5] MANNA SS, 1991, J PHYS A, V24, P481
[6] ODA M, 1997, P IUTAM S MECH GRAN, P353
[7] Bimodal character of stress transmission in granular packings
Radjai, F
Wolf, DE
Jean, M
Moreau, JJ
[J]. PHYSICAL REVIEW LETTERS, 1998, 80 (01) : 61 - 64
[8] Schafer J, 1996, J PHYS I, V6, P5, DOI 10.1051/jp1:1996129
[9] SORNETTE D, 1999, PHYS REP, V313, P8
[10] THORNTON C, 1994, NUMERICAL METHODS IN GEOTECHNICAL ENGINEERING, P143

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