DTIC ADA1043486: Explosive Fragmentation of Dividing Walls | |
by Defense Technical Information Center | |
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A study to determine the fragmentation characteristics of | |
reinforced concrete and masonry dividing walls subjected | |
to close-in blast effects has been performed. This study | |
concentrated its efforts on obtaining data on the | |
following parameters: fragment velocity, fragment shape | |
and size, and fragment density down range. A test plan | |
for validation tests was developed based on the results | |
of the literature search and the model analysis. Thirty- | |
six tests using 1/6th-scale model reinforced concrete | |
dividing walls and four full-scale masonry dividing wall | |
tests were performed. Charge weight, standoff distance, | |
wall thickness, reinforcement spacing and restraint | |
conditions were varied for the reinforced concrete wall | |
tests; charge weight, standoff distance, and type of | |
block were varied for the masonry wall tests. Fragments | |
were recovered, sized, and weighed, and fragment | |
velocities were measured for all tests. A procedure was | |
developed for estimating the total impulse imparted to | |
the dividing wall during an explosion. An empirical | |
prediction model, which adequately correlated the | |
experimental data for the number of fragments produced, | |
the highest velocity, the longest range, and the largest | |
mass with the total impulse was developed. Statistical | |
distributions for fragment mass and range were prepared | |
in the format of arena tests of bombs and large caliber | |
projectiles. | |
Date Published: 2020-04-17 20:59:46 | |
Identifier: DTIC_ADA1043486 | |
Item Size: 94906248 | |
Language: english | |
Media Type: texts | |
# Topics | |
DTIC Archive; Vargas, L M ; SOUTHWES... | |
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dticarchive | |
additional_collections | |
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@chris85 | |
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