Local stress relaxation and shear banding in a dry foam under shear -: art. no. 258303

被引：136

作者：

Kabla, A ^{[1
]}

Debrégeas, G ^{[1
]}

机构：

[1] Coll France, CNRS, UMR 7125, LFO, F-75231 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.90.258303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have developed a realistic simulation of 2D dry foams under quasistatic shear. After a short transient, a shear-banding instability is observed. These results are compared with measurements obtained on real 2D (confined) foams. The numerical model allows us to exhibit the mechanical response of the material to a single plastication event. From the analysis of this elastic propagator, we propose a scenario for the onset and stability of the flow localization process in foams, which should remain valid for most athermal amorphous systems under creep flow.

引用

页数：4

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