| 摘要 |
A munition (1) containing a confined explosive (12), is protected against a significant temperature increase such as that which would result from a fire. The envelope (10) of the munition (1) is provided with a zone (2, 3, 6) rendered so fragile that, during a temperature increase, the pressure buildup due to the decomposition of the explosive (12) produces an opening in the envelope (10), thus achieving a mechanical deconfinement of the explosive (12). In addition, the explosive (12) is chosen so that the kinetics of the decomposition-detonation be sufficiently slow for the mechanism of deconfinement to be effective before the explosion. In particular, an explosive of the composite type with a flexible binder is suitable. The fragile zone may be a solder join (2) between two parts of the envelope, fusible nut/bolt attachments, or fusible threaded inserts for attaching cheek (11) to envelope (10). Also, the cheek (11) may be attached by a crimp which is calibrated to fail at a safe internal pressure. <IMAGE> |
