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Impact processes in the Solar System: New understandings through numerical modelingA collision of two rocky objects circling the sun in space, each roughly the size and mass of a large mountain range, was modeled. A fragmentation hydrocode was developed to perform dynamical computations of collisional outcomes. Explosive framentation and fluid dynamics were used and drawn together into a single application. To model a solid, certain material parameters, such as density, elasticity, rigidity, and energies of melting and vaporization were input. These parameters are well-known for a variety of important materials, such as ice, iron, granite, and basalt. Another important parameter used is the distribution of initial flaws within the material.
Document ID
Document Type
Conference Paper
Asphaug, E. (Arizona Univ. Tucson, AZ, United States)
Melosh, H. J. (Arizona Univ. Tucson, AZ, United States)
Ryan, E. (Planetary Science Inst. Tucson, AZ., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Lunar and Planetary Inst., 22nd Lunar and Planetary Science Conference
Subject Category
Distribution Limits
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19910010682Analytic PrimaryTwenty-Second Lunar and Planetary Science Conference