Ratcheting of granular materials -: art. no. 054301

被引：87

作者：

Alonso-Marroquín, F ^{[1
]}

Herrmann, HJ ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.92.054301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the quasistatic mechanical response of soils under cyclic loading using a discrete model of randomly generated convex polygons. This response exhibits a sequence of regimes, each one characterized by a linear accumulation of plastic deformation with the number of cycles. At the grain level, a quasiperiodic ratchetlike behavior is observed at the contacts, which excludes the existence of an elastic regime. The study of this slow dynamics allows exploration of the role of friction in the permanent deformation of unbound granular materials subjected to cyclic loading.

引用

页数：4

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