Stress in frictionless granular material: Adaptive network simulations
نویسندگان
چکیده
منابع مشابه
Measurements of the yield stress in frictionless granular systems.
We perform extensive molecular dynamics simulations of two-dimensional frictionless granular materials to determine whether these systems can be characterized by a single static yield shear stress. We consider boundary-driven planar shear at constant volume and either constant shear force or constant shear velocity. Under steady flow conditions, these two ensembles give similar results for the ...
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The knowledge about granular materials is rather limited compared to the respective information on the solids, while a unified theory encompassing all granular material phenomena has not been created yet [1]. Despite the fact that granular material is the discontinuous media its behavior is commonly described by the continuum approach. Consequently, the definition of stresses in granular materi...
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Surfaces of planets and small bodies of our Solar System are often covered by a layer of granular material that can range from a fine regolith to a gravel-like structure of varying depths. Therefore, the dynamics of granular materials are involved in many events occurring during planetary and small-body evolution thus contributing to their geological properties. We demonstrate that the new adap...
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0019-1035/$ see front matter 2012 Elsevier Inc. A http://dx.doi.org/10.1016/j.icarus.2012.03.006 ⇑ Corresponding author at: Laboratoire Lagrange (U Sophia Antipolis, CNRS, Observatoire de la Côte d’Azur 4, France. Fax: +33 4 9200 3058. E-mail address: [email protected] (N. Murdoch). Surfaces of planets and small bodies of our Solar System are often covered by a layer of granular material that can ...
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Simulated granular packings with different particle friction coefficient mu are examined. The distribution of the particle-particle and particle-wall normal and tangential contact forces P(f) are computed and compared with existing experimental data. Here f identical with F/(-)F is the contact force F normalized by the average value (-)F. P(f) exhibits exponential-like decay at large forces, a ...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2000
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.62.2510