1979•USRA Houston Repository (Lunar and Planetary Institute)Open access

Calculational investigation of impact cratering dynamics: Early time material motions

Jeffrey M. Thomsen, M. G. Austin, S. F. Ruhl, P. H. Schultz, Dennis L. Orphal

Abstract

Early time two-dimensional finite difference calculations of laboratory-scale hypervelocity (6 km/sec) impact of 0.3 g spherical 2024 aluminum projectiles into homogeneous plasticene clay targets were performed and the resulting material motions analyzed. Results show that the initial jetting of vaporized target material is qualitatively similar to experimental observation.

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Available abstract

Key concepts: Projectile, Hypervelocity, Impact crater, Mechanics, Flow (mathematics), Physics, Field (mathematics), Geology