Velocity and spin fragments from impact disruptions. I - an experimental approach to a general law between mass and velocity

Details Velocity and spin fragments from impact disruptions. I - an experimental approach to a general law between mass and velocity Velocity and spin fragments from impact disruptions. I - an experimental approach to a general law between mass and velocity

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar..100..127n&link_type=abstract

Icarus (ISSN 0019-1035), vol. 100, no. 1, p. 127-135.

Computer Science

35

Center Of Mass, Fragmentation, Gypsum, Mass Ratios, Velocity Distribution, Aluminum Oxides, Basalt, Ejecta, Shatter Cones

Scientific paper

Impact disruption experiments under varying impact conditions were conducted in order to establish a scaling law for the velocity and rotational frequency distributions applicable to large-scale events involving such objects as asteroids, satellites, and planetesimals. The velocity distribution of fragments is presented emphasizing the relation to the dimension of the fragments. A center of mass system (CMS) is adopted to compare data from previous basalt and alumina experiments to newly obtained gypsum data. Gypsum showed cone-type fragmentation even with high velocity impacts of nylon projectiles. The CMS representation is more general and convenient when collisions between planetary bodies are considered where the relative difference in the orbital motions causes a collision. Mass-velocity relations are presented and compared with model predictions of material ejection from cratering events. A possible general law for the fragment mass-ejection velocity is discussed.

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