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COMPUTER FILE
Title Quantitative gap measurement in ceramic armor arrays / Seth Ghiorse ... [and others].
Imprint Aberdeen Proving Ground, MD : Army Research Laboratory, [2010]

LOCATION CALL # STATUS MESSAGE
 ONLINE GOVERNMENT PUBLICATION  D 101.133:5303    ONLINE  
LOCATION CALL # STATUS MESSAGE
 ONLINE GOVERNMENT PUBLICATION  D 101.133:5303    ONLINE  
Series ARL-TR ; 5303
ARL-TR (Aberdeen Proving Ground, Md.) ; 5303.
Subject Armored vehicles, Military -- Protection.
Reactive armor tiles.
Ceramic materials -- Nondestructive testing.
Armor-plate -- Materials -- Nondestructive testing.
Alt Name Ghiorse, Seth.
U.S. Army Research Laboratory.
Description 1 online resource (v, 32 pages) : illustrations (some color).
Note Title from title screen (viewed June 28, 2011).
Performing organization: U.S. Army Research Laboratory.
Final rept; 1 Oct 2009 - 31 May 2010.
Bibliography Note Includes bibliographical references.
Access APPROVED FOR PUBLIC RELEASE.
Summary In order to reduce weight while maintaining ballistic performance, modern armored vehicles often use ceramic-based armor solutions. Ceramic solutions are typically made of a close-fitting periodic array of ceramic tiles, maintaining a specific gap dimension between the tiles. The gap separation distance is critical to the ballistic performance of the system and it is important to have a reliable means of quantitative inspection. This report presents results of a study of a non-destructive quantitative X-ray gap width measurement method commonly used to measure and inspect array gaps. It was found that this X-ray method gives a good portrayal of array quality and gap widths, but that gap measurement accuracy likely can be improved. The X-ray method was found to skew gap width measurements higher, between 2 and 20%, and was dependent on image blur. An X-ray system designed specifically for gap measurement will significantly improve measurement accuracy. Obtaining such a system is recommended, with digital X-ray radiography being the preferred path forward.
OCLC # 713342576



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