Modelling and Simulation of Cratering and Ejecta Production During High Velocity Impacts
- Creators
- Schill, W.
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Wasem, J. V.
- Owen, J. M.
Abstract
During an impact event from a high velocity particle (moving at speeds of around 100 m/s or greater) a significant amount of ejecta can be formed and thrown away from the impact point at velocities on the same order as the original impactor. The amount, size distribution, and speed distribution of this ejecta vary with the impact conditions. Predicting this cratering and ejecta phenomena has applications to many areas, including solar system formation, asteroid defense considerations, and micrometeorite impacts on satellites. This paper will look at the physics and modeling of these impacts and the subsequent ejecta formation from these hypervelocity particles. Impacts are modeled using adaptive smooth particle hydrodynamics, and crater volume and ejecta characteristics are quantified and presented. Good agreement with two experimental test cases is obtained.
Additional Information
© 2017 The authors. Received: 23 September 2016. Accepted: 18 January 2017. First Online: 03 February 2017. We would like to thank David Dearborn, Paul Miller, Frank Graziani, Brian Pudliner, and Kirsten Howley for their valuable advice and support of this project. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344, and partially funded by the Laboratory Directed Research and Development Program at LLNL under tracking code 12-ERD-005. LLNL-JRNL-703571.Attached Files
Published - 10.1007_2Fs40870-017-0094-6.pdf
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Additional details
- Eprint ID
- 78216
- Resolver ID
- CaltechAUTHORS:20170614-145245282
- DE-AC52-07NA27344
- Department of Energy (DOE)
- 12-ERD-005
- Lawrence Livermore National Laboratory
- LLNL-JRNL-703571
- Lawrence Livermore National Laboratory
- Created
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2017-06-15Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field