Bulletin of the American Physical Society
16th APS Topical Conference on Shock Compression of Condensed Matter
Volume 54, Number 8
Sunday–Friday, June 28–July 3 2009; Nashville, Tennessee
Session N1: Poster Session II (7:00-9:00pm)
Tuesday, June 30, 2009
Room: Tennessee Ballroom D/E
Abstract ID: BAPS.2009.SHOCK.N1.79
Abstract: N1.00079 : Penetration Resistance in Granular Materials With and Without Fluid Injection
Preview Abstract Abstract
Investigating the different factors affecting the resistance of earth materials to penetration is important to both commercial and military applications. Both friction and resistance to deformation are involved, but the work presented in the paper focuses on friction and the effectiveness of reducing it by injecting a fluid at the interface with the penetrator. Measurement of the coefficient of friction between a granular material under pressure and a hardened steel surface sliding at velocities between 0.1 and 100 m/s are presented. Pressures above and below the crushing strength of the grains were considered. Two types of granular materials were tested - sand and glass beads, the latter a model material that allows a highly uniform bed of particles. The measurements with dry and pre-wetted beds are compared to those of initially dry beds as a fluid is being injected through the sliding steel surface.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2009.SHOCK.N1.79
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