Asteroid diversion considerations and comparisons of diversion techniques [electronic resource]
Asteroid; Hazard Mitigation; Simulations; Failure And Fracture Modeling.
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| Online Access: |
Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2015.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Asteroid diversion considerations and comparisons of diversion techniques |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Department of Energy. ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, |c 2015. | ||
| 300 | |a p. 466-474 : |b digital, PDF file. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through SciTech Connect. | ||
| 500 | |a 05/19/2015. | ||
| 500 | |a ": S1877705815007353" | ||
| 500 | |a Procedia Engineering 103 C ISSN 1877-7058 AM. | ||
| 500 | |a Miller, Paul; Yale Univ., New Haven, CT; Owen, J. Michael; Rovny, Jared; Wasem, Joe; Howley, Kirsten; Herbold, Eric B. | ||
| 520 | 3 | |a The threat of asteroid impacts on Earth poses a low-probability but high consequence risk, with possible outcomes ranging from regional to global catastrophe. However, unique amongst such global threats we have the capability of averting such disasters. Diversion approaches by either kinetic impactor or nuclear energy deposition are the two most practical technologies for mitigating hazardous near Earth asteroids. One of the greatest challenges in understanding our options is the uncertain response of asteroids to such impulsive techniques, due both to our lack of knowledge of the composition and structure of these objects as well as their highly varied nature. Predicting whether we will simply divert or break up a given object is a crucial: the weak self-gravity and inferred weak structure of typical asteroids present the strong possibility the body will fragment for modest impulses. Predictive modeling of failure and fragmentation is one important tool for such studies. In this paper we apply advances in modeling failure and fracture using Adaptive Smoothed Particle Hydrodynamics (ASPH) to understand mega-cratering on asteroids as a validation exercise, and show examples of diverting the near Earth asteroid Bennu using both a kinetic impactor and ablative blow-off due to nuclear energy deposition. | |
| 520 | 0 | |a Asteroid; Hazard Mitigation; Simulations; Failure And Fracture Modeling. | |
| 650 | 7 | |a Astronomy And Astrophysics. |2 edbsc. | |
| 710 | 2 | |a Lawrence Berkeley National Laboratory. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
| 856 | 4 | 0 | |u http://www.osti.gov/servlets/purl/1201661/ |z Online Access |
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| 952 | f | f | |p Can circulate |a University of Colorado Boulder |b Online |c Online |d Online |e E 1.99:1201661 |h Superintendent of Documents classification |i web |n 1 |