NDLI: Effect of impact location on the response of shuttle wing leading edge panel 9

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Effect of impact location on the response of shuttle wing leading edge panel 9

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lyle, Karen H. Spellman, Regina L. Hardy, Robin C. Fasanella, Edwin L. Jackson, Karen E.
Copyright Year	2005
Description	The objective of this paper is to compare the results of several simulations performed to determine the worst-case location for a foam impact on the Space Shuttle wing leading edge. The simulations were performed using the commercial non-linear transient dynamic finite element code, LS-DYNA. These simulations represent the first in a series of parametric studies performed to support the selection of the worst-case impact scenario. Panel 9 was selected for this study to enable comparisons with previous simulations performed during the Columbia Accident Investigation. The projectile for this study is a 5.5-in cube of typical external tank foam weighing 0.23 lb. Seven locations spanning the panel surface were impacted with the foam cube. For each of these cases, the foam was traveling at 1000 ft/s directly aft, along the orbiter X-axis. Results compared from the parametric studies included strains, contact forces, and material energies for various simulations. The results show that the worst case impact location was on the top surface, near the apex.
File Size	1255492
Page Count	14
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20050192431
Archival Resource Key	ark:/13960/t9d55m528
Language	English
Publisher Date	2005-07-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance Metal Foams Carbon-carbon Composites Hypervelocity Projectiles Space Shuttles Impact Loads Photomicrography Wing Panels Finite Element Method External Tanks Simulation Nonlinearity Kinetic Energy Leading Edges Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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