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This is a ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL report procured by the Pentagon and made available for public release It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A775403. The abstract provided by the Pentagon follows: In the past two decades, armor producers have developed a curved lightweight Kevlar(tm) backed ceramic plate for the chest capable of defeating a 50-caliber machine gun projectile. Although this ceramic armor is effective in defeating the 1/10-pound projectile, the deformation of the Kevlar(tm) inside surface can cause severe, incapacitating injury. In an attempt to determine the Kevlar(tm)-to-chest space (standoff) needed to prevent such injury and/or incapacitation, a live fire test series was conducted on 12 man-size pigs wearing chest armor with polyvinyl chloride (PVC) standoff foam of 0.55, 0.S2, and 1.07-inch thickness. Results revealed (1) one pig out of four died instantly where the 0.55-inch foam was worn; all the pigs survived with the thicker foams; however, even with the 1.07-inch foam, one of four sustained bradycardia for 10 seconds postimpact; (2) the pathological and physiological findings indicated the standoff foam used transmitted excessive pressure and caused the trauma noted above; and, (3) the PVC standoff foam is highly rate sensitive, causing a threefold pressure increase for the rear surface velocity estimated in the tests. It is concluded that no less than 1-inch standoff distance is needed and that a standoff material with a dynamic pressure of 20 psi or less be used..
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This is a ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD report procured by the Pentagon and made available for public release It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A798463. The abstract provided by the Pentagon follows: This report documents the fully coupled numerical modeling of the detonation of a simplified munitions stack in a temporary storage area and the subsequent effects on the immediate surroundings of the stack. Five plausible configurations of this munitions stack, referred to as the "donor" stack, an intervening water barricade, and an "acceptor" munitions stack are modeled in two-dimensional (2-D) Cartesian hydrocode computations using the CTH hydrodynamics computer code. The distance between each munitions stack and the barricade, referred to here as the "standoff" distance, is varied from one computation to the next, with the physical characteristics of the munitions stacks and barricade themselves remaining unchanged. The donor stack is modeled as an uncased, condensed, high-explosive charge with a rectangular cross section. The water barricade has a trapezoidal cross section, and the acceptor stack is a solid iron rectangle. The loadings on both the barricade and the acceptor stack are computed, as are their fully coupled responses to those loadings. Only a relatively weak inverse functional relationship with standoff distance was found in the barricade response. A moderate correlation with standoff distance, and a stronger correlation with the distance between the donor stack right face and the acceptor stack left face, were found for the acceptor stack response. The results are also compared with those of an earlier study on two uncoupled blast loading and response computations for one of the configurations..
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This digital document is an article from MIS Quarterly, published by University of Minnesota, MIS Research Center on September 1, 1999. The length of the article is 2000 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: The Timeliness of Publications in MIS Quarterly.
Publication:MIS Quarterly (Refereed)
Date: September 1, 1999
Publisher: University of Minnesota, MIS Research Center
Volume: 23 Issue: 3 Page: 39

Distributed by Thomson Gale.
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