Experiments and scaling laws for catastrophic collisionsThe existing data on shattering impacts are reviewed using natural silicate, ice, and cement-mortar targets. A comprehensive data base containing the most important parameters describing these experiments was prepared. The collisional energy needed to shatter consolidated homogeneous targets and the ensuing fragment size distributions have been well studied experimentally. However, major gaps exist in the data on fragment velocity and rotational distributions, as well as collisional energy partitioning for these targets. Current scaling laws lead to predicted outcomes of asteroid collisions that are inconsistent with interpretations of astronomical data.
Document ID
19900039959
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fujiwara, A. (Kyoto University Japan)
Cerroni, P. (CNR Istituto di Astrofisica Spaziale, Rome, Italy)
Davis, D. (Kyoto Univ. Japan)
Ryan, E. (Planetary Science Institute Tucson, AZ, United States)
Di Martino, M. (Torino Osservatorio Astronomico, Turin, Italy)