Refraction of shear zones in granular materials

Details Refraction of shear zones in granular materials Refraction of shear zones in granular materials

2006-10-03

arxiv.org/abs/cond-mat/0610083v2

Phys. Rev. Lett. 98, 018301 (2007)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 3 figures, minor changes, jounal ref. added

Scientific paper

10.1103/PhysRevLett.98.018301

We study strain localization in slow shear flow focusing on layered granular materials. A heretofore unknown effect is presented here. We show that shear zones are refracted at material interfaces in analogy with refraction of light beams in optics. This phenomenon can be obtained as a consequence of a recent variational model of shear zones. The predictions of the model are tested and confirmed by 3D discrete element simulations. We found that shear zones follow Snell's law of light refraction.

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