Výsledky vyhledávání - "Joel Williamsen"

Characterizing the Largest Debris Cloud Particle Created by Thin Plate Impact

Autor: William Schonberg, Joel Williamsen

Publikováno v: Journal of Spacecraft and Rockets. 60:375-380

All spacecraft are subject to the possibility of high-speed particle impacts during their mission life. Such impacts create debris clouds that travel toward and eventually impact downstream spacecraft components. In addition to the impulsive load tha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::72034d4d9b8485ac2d71d109263cdb71
https://doi.org/10.2514/1.a35491

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Deep Impact Spacecraft Shielding Design—Surviving a Comet Encounter

Autor: Jeremy Stober, Hilary J. Evans, William Bohl, Joel Williamsen, Brooke A. Myers

Publikováno v: International Journal of Impact Engineering. 29:791-801

This paper describes the development of the structural protection for the Deep Impact impactor and flyby spacecraft against hypervelocity impacts due to passage through Comet Temple 1, including the following items: A description of the comet flux mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02425b67a158a885d78f193198fe22d5
https://doi.org/10.1016/j.ijimpeng.2003.10.025

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Effects of uncertainty in hypervelocity impact performance equations and other parameters on variance in spacecraft vulnerability predictions

Autor: Joel Williamsen, Hilary J. Evans

Publikováno v: International Journal of Impact Engineering. 23:225-236

The increasing man-made debris environment in low-earth orbit (LEO) has prompted NASA to develop new methods for quantifying (and reducing) the risks to spacecraft and crew following hypervelocity penetration by orbital debris. The Manned Spacecraft

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9f8a374d942fadc4b6a5a8a05190953
https://doi.org/10.1016/s0734-743x(99)00075-5

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[Untitled]

Autor: Hilary J. Evans, William P. Schonberg, Joel Williamsen

Publikováno v: Space Debris. 1:37-43

Long-duration spacecraft in low earth orbit such as the International Space Station (ISS) are highly susceptible to high-speed impacts by pieces of debris from past earth-orbiting missions. Among the hazards that accompany the penetration of a pressu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8224c7f848d129cba80f6dfd9cacb3e
https://doi.org/10.1023/a:1010032430083

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An Improved Prediction Model for Spacecraft Damage Following Orbital Debris Impact

Autor: William P. Schonberg, Joel Williamsen

Publikováno v: 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference20th AIAA/ASME/AHS Adaptive Structures Conference14th AIAA.

This paper offers a new set of “generic”, data-based hole size and crank length prediction models for spherical orbital debris particles impacting multi-plate targets at velocities up to ~12 km/s. The equations are applicable to a wide variety of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9dbae23c4ad773a17d2cb1840cf049d2
https://doi.org/10.2514/6.2012-1507

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Force Protection Evaluation for Combat Aircraft Crews

Autor: Joel Williamsen, Torger J. Anderson

Publikováno v: 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.

A methodology is proposed to improve the fidelity of survivability and vulnerability analyses so tha t crew casualty risks can be assessed and the aircraft survivability can be more accurately determined. The evaluation of personnel casualties is bey

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b55302142ea618c567028e8d89f6666
https://doi.org/10.2514/6.2007-2139

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Vulnerability Reduction Features for Commercial Derivative Combat Aircraft

Autor: Joel Williamsen, Leonard F. Truett, Torger J. Anderson

Publikováno v: 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 14th AIAA/ASME/AHS Adaptive Structures Conference 7th.

*† ‡ High Value Airborne Assets (HVAAs), developed from commercial derivative aircraft, are designed to perform critical functions as part of U. S. battle forces but lack vulnerability reduction features that could significantly improve their sur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca560e97066b52e6072ff443fcffc804
https://doi.org/10.2514/6.2006-2126

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Orbital Debris Shape Effects on Ballistic Limit Curves: A Hydrocode Analysis

Autor: Joel Williamsen, Steven W. Evans

Publikováno v: 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fcb22975b5a2044d542a8334854e7961
https://doi.org/10.2514/6.2005-2383

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Bounding the risk of crew loss following orbital debris penetration of the International Space Station at assembly stages 1J and 1E

Autor: Joel Williamsen, Steven W. Evans, Hilary J. Evans, William Bohl, H. Lewis

Publikováno v: Advances in space research : the official journal of the Committee on Space Research (COSPAR). 34(5)

Orbital debris impacts on the International Space Station occur frequently. To date, none of the impacting particles has been large enough to penetrate manned pressurized volumes. We used the Manned Spacecraft Crew Survivability code to evaluate the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8396df04690d44f1251c9f1cf309e253
https://pubmed.ncbi.nlm.nih.gov/15739282

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