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Bounds on the yield stress of cohesionless granular matter | Wouter G. Ellenbroek
; Jacco H. Snoeijer
; | Date: |
29 Jun 2006 | Subject: | Disordered Systems and Neural Networks; Soft Condensed Matter | Abstract: | We characterize the force state of shear-loaded granular matter by relating the macroscopic stress to statistical properties of the force network. It is demonstrated how force anisotropies naturally provide an upper bound for the shear stress. We establish a relation between the maximum possible shear resistance and the friction coefficient between individual grains, and find that anisotropies of the contact network (or the fabric tensor) only have a subdominant effect. Finally, we discuss how force anisotropies can be related quantitatively to experimental measurements of the effective elastic constants. | Source: | arXiv, cond-mat/0606747 | Services: | Forum | Review | PDF | Favorites |
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