Asymmetric material impact: Achieving free surfaces velocities nearly double that of the projectile
Abstract
Hypervelocity impact speeds are often limited by practical considerations in guns and explosive driven systems. In particular, for gas guns (both powder driven and light gas guns), there is the general trend that higher projectile speeds often come at the expense of smaller diameters, and thus less time for examining shock phenomena prior to two dimensional release waves affecting the observed quantities of interest. Similarly, explosive driven systems have their own set of limiting conditions due to limitations in explosive energy and size of devices required as engineering dimensions increase. The focus in this study is to present a methodology of obtaining free surface velocities well in excess of the projectile velocity. The key to this approach is in using a high impedance projectile that impacts a series of progressively lower impedance materials. The free surface velocity (if they were separated) of each of the progressively lower impedance materials would increase for each material. The theory behind this approach, as well as experimental results are presented.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1194066
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Procedia Engineering
- Additional Journal Information:
- Journal Volume: 103; Journal Issue: C; Conference: 2015 Hypervelocity Impact Symposium (HVIS 2015), Boulder, CO (United States), 26-30 Apr 2015; Journal ID: ISSN 1877-7058
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; gas gun; free surface velocity; asymmetric material impact
Citation Formats
Aslam, Tariq, Dattelbaum, Dana, Gustavsen, Richard, Scharff, Robert, and Byers, Mark. Asymmetric material impact: Achieving free surfaces velocities nearly double that of the projectile. United States: N. p., 2015.
Web. doi:10.1016/j.proeng.2015.04.003.
Aslam, Tariq, Dattelbaum, Dana, Gustavsen, Richard, Scharff, Robert, & Byers, Mark. Asymmetric material impact: Achieving free surfaces velocities nearly double that of the projectile. United States. https://doi.org/10.1016/j.proeng.2015.04.003
Aslam, Tariq, Dattelbaum, Dana, Gustavsen, Richard, Scharff, Robert, and Byers, Mark. Tue .
"Asymmetric material impact: Achieving free surfaces velocities nearly double that of the projectile". United States. https://doi.org/10.1016/j.proeng.2015.04.003. https://www.osti.gov/servlets/purl/1194066.
@article{osti_1194066,
title = {Asymmetric material impact: Achieving free surfaces velocities nearly double that of the projectile},
author = {Aslam, Tariq and Dattelbaum, Dana and Gustavsen, Richard and Scharff, Robert and Byers, Mark},
abstractNote = {Hypervelocity impact speeds are often limited by practical considerations in guns and explosive driven systems. In particular, for gas guns (both powder driven and light gas guns), there is the general trend that higher projectile speeds often come at the expense of smaller diameters, and thus less time for examining shock phenomena prior to two dimensional release waves affecting the observed quantities of interest. Similarly, explosive driven systems have their own set of limiting conditions due to limitations in explosive energy and size of devices required as engineering dimensions increase. The focus in this study is to present a methodology of obtaining free surface velocities well in excess of the projectile velocity. The key to this approach is in using a high impedance projectile that impacts a series of progressively lower impedance materials. The free surface velocity (if they were separated) of each of the progressively lower impedance materials would increase for each material. The theory behind this approach, as well as experimental results are presented.},
doi = {10.1016/j.proeng.2015.04.003},
journal = {Procedia Engineering},
number = C,
volume = 103,
place = {United States},
year = {Tue May 19 00:00:00 EDT 2015},
month = {Tue May 19 00:00:00 EDT 2015}
}
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Works referenced in this record:
Equation of State of Gases by Shock Wave Measurements. I. Experimental Method and the Hugoniot of Argon
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An equation of state for polyurea aerogel based on multi-shock response
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