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RESEARCH PAPERS

The Response of a Partially Confined Detonation Facility to Blast Loading

[+] Author and Article Information
C. A. Lind, J. P. Boris, E. S. Oran

Laboratory for Computational Physics and Fluid Dynamics, Naval Research Laboratory, Code 6440, B-97, 4555 Overlook Avenue SW, Washington, DC 20372-5344

W. J. Mitchell

U.S. EPA Office of Research and Development, Research Triangle Park, NC 27711

J. L. Wilcox

West Desert Test Center, U.S. Army Dugway Proving Ground, Dugway, UT 84022-5000

J. Pressure Vessel Technol 120(3), 306-312 (Aug 01, 1998) (7 pages) doi:10.1115/1.2842062 History: Received December 02, 1997; Revised February 27, 1998; Online February 11, 2008

Abstract

It is estimated that more than 500,000 tons of obsolete and unwanted conventional weapons exist in the United States. The disposal of these unexploded ordnances, in an environmentally sound and cost-effective way, is of paramount importance. Open-air burning and open-air detonation (OB/OD) are two of the most widely used methods to dispose of these unwanted energetic materials. This paper describes our efforts to improve OB/OD operations through the design and testing of a new, large-scale, partially confined facility that minimizes the adverse affects of far-field noise and maximizes the afterburn of explosive by-products. Several designs were evaluated by a series of axisymmetric, time-dependent numerical simulations using FAST3D, a flux-corrected transport-based code optimized for parallel processing. The simulations are used to test various facility geometries and placements and sizes of charges to determine combinations that result in acceptable environmental impact. Comparisons of the pressure and structural analyses for 50 and 100 lb of spherically shaped RDX charges show that the 50-lb spherically shaped charge placed at a height of approximately 2.0 m resulted in an efficient detonation and maintained the structural integrity of the detonation facility.

Copyright © 1998 by The American Society of Mechanical Engineers
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