Dynamics of shallow impact cratering

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We present data for the time-dependence of wooden spheres penetrating into a loose non-cohesive packing of glass beads. The stopping time is a factor of three longer than the time $d/v_\circ$ needed to travel the total penetration distance $d$ at the impact speed $v_\circ$. The acceleration decreases monotonically throughout the impact. These kinematics are modelled by a position- and velocity-dependent stopping force that is constrained to reproduce prior observations for the scaling of the penetration depth with the total drop distance.
4 pages, experiment

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Soft Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/95711

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0503454
 http://arxiv.org/abs/cond-mat/0503454
 Phys. Rev. E 72, 041305 (2005)
 doi:10.1103/PhysRevE.72.041305

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arXiv