Blast mitigation capabilities of aqueous foam.

Hartman, William Franklin ; Larsen, Marvin Elwood ; Boughton, Bruce A.

Sandia National Laboratories

关键词: Foam.;    Chemical Explosives;    42 Engineering;    Mitigation;    Explosives.;   

DOI  :  10.2172/877732
RP-ID  :  SAND2006-0533
RP-ID  :  AC04-94AL85000
RP-ID  :  877732

美国|英语

来源: UNT Digital Library

【 摘 要 】

A series of tests involving detonation of high explosive blanketed by aqueous foam (conducted from 1982 to 1984) are described in primarily terms of recorded peak pressure, positive phase specific impulse, and time of arrival. The investigation showed that optimal blast mitigation occurs for foams with an expansion ratio of about 60:1. Simple analyses representing the foam as a shocked single phase mixture are presented and shown inadequate. The experimental data demonstrate that foam slows down and broadens the propagated pressure disturbance relative to a shock in air. Shaped charges and flyer plates were evaluated for operation in foam and appreciable degradation was observed for the flyer plates due to drag created by the foam.