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Title: Airblast attenuation in entranceways and other typical components of structures : small-scale tests data report 1
Authors: Air Force Engineering and Services Center (U.S.)
Britt, James R.
Little, Charles D., 1946-
Keywords: Airblast penetration
Airblast shock wave
Blast effects
Explosion effects
Shock waves
Publisher: Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical report (U.S. Army Engineer Waterways Experiment Station) ; SL-84-22.
Description: Technical Report
Abstract: Airblast attenuation through entranceways into structural components was investigated in a small-scale explosive test series during 1981 and 1982. A total of 81 tests were performed with steel constructed models of round and square tunnel components in configurations typically found in field fortifications and personnel shelters. The experimental program consisted from 113 to 907 g of composition C-4 of a series of spherical charges ranging explosive detonated outside and inside the entrance of tunnels of circular and square cross sections. The model structures were about 30 cm in diameter and from 4 to 24 tunnel diameters long. Both end-on and side-on burst configurations were used. Blast pressure was measured at locations ranging from 1/6 to 24 diameters from the entrance. Included in the program were tests of blast propagation in a long straight tunnel, blast reflection at the end of short tunnels, blast attenuation in side tunnels and "T" tunnels, blast propagation in 45 and 90 degree bends and blast suppression with a vented expansion chamber. Pressure-time histories with corresponding impulse-time histories and tabulated peak values are presented. NOTE: This file is very large. Allow your browser several minutes to open the file.
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