Fragment Containment Characteristics of Explosives Buildings and Other Forms of Fragment Protection for HD 1.1 and HD 1.2 Charges Up to 2.5 kg TNT Equivalent.

摘要

A series of trials was conducted in October 1988 to assess the primary fragment containment and secondary fragment generation characteristics of explosives buildings when subjected to HD1.1 and HD1.2 charges detonating within the building. A number of other fragment protection devices were tested and the results enabled the conclusion that the double brick cavity walls of these buildings plus 25 mm mild steel sheeting are acceptable containment to stop the fragment spread from charges up to 2.5 kg TNT equivalent. Care needs to be taken to provide adequate stand-off from walls and to ensure that the elevation angle of the containment exceeds 50. Tests showed that the rope mantle is unacceptable in providing containment, and the walls of environmental test chambers require additional protective screening or special additional testing under the proposed usage conditions to ensure adequate containment of fragments from a small quantity explosion. Keywords: Explosion effects. (KT)