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Aberdeen Report "Page 1"
"Page 2",  "Page 3".

 

ABERDEEN REPORT

DEPARTMENT OF THE ARMY 
UNITED STATE ARMY RESEARCH LABORATORY
ABERDEEN PROVING GROUBD< MARYLAND 21005-5066

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FIREXX BLAST ATTENUATION TESTS

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Table 1: Force/Impulse Tests

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Target Polyethylene 4 Inch Firexx 8 Inch Firexx Units
------ ------------ ------ ------ -----
Total Force 3118 2360 1084* kN
Impulse 1.712 1.57 0.824* KN*s
%Reduction in Force Baseline 24 65 %
%Reduction in Impulse Baseline 8 52 %
    
* These values do not represent the actual total force and impulse at the interface between the anvil plate and the base plate because one of the loadcells malfunctioned during the loading event. However, it is reasonable to assume that these values are in the range of 85% to 95% of the actual load and impulse.

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Table 2: Bleed-through Tests
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Target 5 Inch Firexx 8 Inch Firexx Units
------ ------ ------ -----
Maximum Bleed pressure 5.72 3.7 Bar
Minimum Bleed pressure 2.96 3 Bar
Reflected Pressure* 43.7 39.5 Bar
Maximum % Reduction 94 92 %
Minimum % Reduction 87 91 %

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* Reflected Pressure on a rigid surface
 
 

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