Impact experiments. III - Catastrophic fragmentation of aggregate targets and relation to asteroids

Details Impact experiments. III - Catastrophic fragmentation of aggregate targets and relation to asteroids Impact experiments. III - Catastrophic fragmentation of aggregate targets and relation to asteroids

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...94..283r&link_type=abstract

Icarus (ISSN 0019-1035), vol. 94, Dec. 1991, p. 283-298.

Physics

43

Asteroids, Fragmentation, Impact Strength, Drop Tests, Impact Tests, Size Distribution

Scientific paper

An experimental study is conducted of collisions employing artificial aggregates as targets, in order to ascertain the fragmentation characteristics of weakly bonded bodies that consist of stronger constituent particles, such as loosely aggregated planetesimals. It is established that weakly bonded aggregate bodies may exhibit unexpectedly high impact strengths due to constituent particles' energy dissipation. The cumulative size distributions of fragments that are larger than the constituent grains form power-law segments resembling those formed by the fragmentation of homogeneous targets.

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