Testing SPH Against Experimental Laboratory Impact Results

Details Testing SPH Against Experimental Laboratory Impact Results Testing SPH Against Experimental Laboratory Impact Results

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002dps....34.0404b&link_type=abstract

American Astronomical Society, DPS Meeting #34, #04.04; Bulletin of the American Astronomical Society, Vol. 34, p.840

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The smooth particle hydrodynamics (SPH) code is the leading technique for modeling meteoroid collisions into asteroids with realistic geologies and shapes (e.g. Asphaug et al., Icarus 1996, "Mechanical and geological effects of impact cratering on Ida"). However, it is important to test the code against results from laboratory impact experiments whenever they become available. Recently, Housen and Holsapple (Icarus 1999, "Scale effects in strength-dominated collisions of rocky asteroids") carried out a controlled set of laboratory experiments designed to examine the dependence of a body's strength on its size, and found an inverse relationship. We are currently running a set of numerical simulations to test the validity of the SPH code by reproducing the findings of these experiments. Our results will be reported at the meeting.

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