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On collisional disruption - Experimental results and scaling lawsBoth homogeneous and inhomogeneous targets have been addressed by the present experimental consideration of the impact strengths, fragment sizes, and fragment velocities generated by cement mortar targets whose crushing strengths vary by an order of magnitude, upon impact of projectiles in the velocity range of 50-5700 m/sec. When combined with additional published data, dynamic impact strength is found to correlate with quasi-static material strengths for materials ranging in character from basalt to ice; two materials not following this trend, however, are weak mortar and clay targets. Values consistent with experimental results are obtainable with a simple scaling algorithm based on impact energy, material properties, and collisional strain rate.
Document ID
19900035864
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Davis, Donald R.
(Planetary Science Inst. Tucson, AZ, United States)
Ryan, Eileen V.
(Planetary Science Institute Tucson, AZ, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Publication Information
Publication: Icarus
Volume: 83
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Accession Number
90A22919
Funding Number(s)
CONTRACT_GRANT: NASW-4294
CONTRACT_GRANT: NASW-4296
Distribution Limits
Public
Copyright
Other

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