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arXiv · cond-mat/0309161

Projectile-shape dependence of impact craters in loose granular media

K. A. Newhall·D. J. Durian
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Abstract

We report on the penetration of cylindrical projectiles dropped from rest into a dry, noncohesive granular medium. The cylinder length, diameter, density, and tip shape are all explicitly varied. For deep penetrations, as compared to the cylinder diameter, the data collapse onto a single scaling law that varies as the 1/3 power of the total drop distance, the 1/2 power of cylinder length, and the 1/6 power of cylinder diameter. For shallow penetrations, the projectile shape plays a crucial role with sharper objects penetrating deeper.

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K. A. Newhall, D. J. Durian. 2003-09-06. Projectile-shape dependence of impact craters in loose granular media. https://doi.org/10.1103/physreve.68.060301

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