Sphere penetration by impact in a granular medium: A collisional process
arXiv:0907.3453 · doi:10.1209/0295-5075/88/44002
Abstract
The penetration by a gravity driven impact of a solid sphere into a granular medium is studied by two-dimensional simulations. The scaling laws observed experimentally for both the final penetration depth and the stopping time with the relevant physical parameters are here recovered numerically without the consideration of any solid friction. Collisional processes are thus found as essential in explaining the physics of the qualitatively observed phenomena whereas frictional processes can only be considered as secondary effects in the granular penetration by impact.
6 pages, 7 figures
References in corpus (6)
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- Scaling and dynamics of sphere and disk impact into granular media
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Cited by in corpus (18)
- Collisional Model for Granular Impact Dynamics
- Dense granular flow around a penetrating object: Experiments and hydrodynamic model
- Experimental velocity fields and forces for a cylinder penetrating into a granular medium
- Granular Dynamics during Impact
- Steady Flow Dynamics during Granular Impact
- Scaling laws for the oblique impact cratering on an inclined granular surface
- Drag Law of Two Dimensional Granular Fluids
- Pedestrians in static crowds are not grains, but game players
- Impact drag force exerting on a projectile penetrating into a hierarchical granular bed
- Roles of packing fraction, microscopic friction and projectile spin in cratering by impact
- Penetrating a granular medium by successive impacts
- Impact craters formed by spinning granular projectiles
- Impact-induced collapse of an inclined wet granular layer
- Downslope granular flow through a forest of obstacles
- A novel experimental setup for an oblique impact onto an inclined granular layer
- Penetration of a spinning sphere impacting a granular medium
- Granular Impact: A Grain-scale Approach
- Intruder dynamics in granular media under localized surface loading