Blast Response Of Walls Retrofitted With Elastomer Coatings
Author(s)
M.S. Hoo Fatt, X. Ouyang & R.J. Dinan
Abstract
Blast response of walls retrofitted with
M. S. Hoo Fatt1, X. Ouyang1 & R. J. Dinan2
1Department of Mechanical Engineering, The University of Akron, USA
2Force Protection Branch, Air Force Research Laboratory, Tyndall Air
Force Base, USA
Abstract
Recent tests at Tyndall Air Force Research Laboratory show that an elastomercoated
to the inside wall of a building can offer significant protection for
occupants by keeping wall fragments together and shielding out blast debris. In
this paper, we develop an equivalent single degree-of-freedom model that can be
used to predict dynamic response of a polymer-retrofitted concrete brick wall
subjected to a stand-off explosion. As an example, we consider the blast
response of a 10 ft-square, 8 in-thick concrete brick wall coated with a 0.083 inthick
layer of polyurea. Explosive field tests with a uniformly-distributed
pressure pulse of 40 psi peak value and 20 ms pulse duration indicate that the
retrofitted wall reaches a maximum deflection of about 7 in. Ou
Keywords
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