A Comparison of Computed Versus Experimental Loading and Response of a Flat Plate Subjected to Mine Blast
Final rept. 1 Oct 1975-31 Dec 1976
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
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The DORF hydrocode is used to generate the loading history on a target plate subjected to the blast loading from a buried land mine. The REPSIL structural response code is used to compute the response of the target plate to this loading. The deflection of a clamped-edge, square, target plate of rolled loading. The deflection of a clamped-edge, square, target plate of rolled homogeneous armor, 25.4 cm on a side and 0.678 cm thick, centered above a buried 0.265 kg charge of C-4, is predicted. The computations performed here are numerical simulations of a field experiment performed and reported by the Southwest Research Institute SwRI. The agreement with the SwRI empirical correlation functions, which include the data for this field experiment, is excellent the DORF calculation for the total impulse delivered to the target is 4.5 above the value computed using the SwRI correlation function for impulse the REPSIL calculation for the maximum residual deformation of the target plate is 10 above the value computed using the SwRI correlation function for maximum residual deformation. The remainder of the profile for the residual deformation of the target plate shows even better agreement with the SwRI correlation function.
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