Shearing of frictional sphere packings
arXiv:1012.5023 · doi:10.1209/0295-5075/93/64003
Abstract
We measure shear response in packings of glass beads by pulling a thin, rough, metal plate vertically through a bed of volume fraction phi, which is set, before the plate is pulled, in the range 0.575 to 0.628. The yield stress is velocity independent over 4 decades and increases exponentially with phi, with a transition at phi approximately 0.595. An analysis of the measured force fluctuations indicates that the shear modulus is significantly smaller than the bulk modulus.
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References in corpus (15)
- Jamming at Zero Temperature and Zero Applied Stress: the Epitome of Disorder
- Jamming of Soft Particles: Geometry, Mechanics, Scaling and Isostaticity
- The Jamming Transition in Granular Systems
- Onset of mechanical stability in random packings of frictional spheres
- Force and flow transition in plowed granular media
- Non-affine response: jammed packings versus spring networks
- Force Mobilization and Generalized Isostaticity in Jammed Packings of Frictional Grains
- A first-order phase transition at the random close packing of hard spheres
- Loose packings of frictional spheres
- Phase transition in a static granular system
- Random close packing of granular matter
- Why Do Granular Materials Stiffen with Shear Rate? A Test of Novel Stress-Based Statistics
- Flow, Ordering and Jamming of Sheared Granular Suspensions
- Stokes experiment in a liquid foam
- Random close packing in a granular model
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- A local view on the role of friction and shape
- Macroscopic model with anisotropy based on micro-macro informations
- Rigidity in Solids