Embodiments employ venting features and damping components both inside and concentric to a fuzewell to improve munition fuze survivability. Damping components are selected based on their densities and stiffness properties. A shock damping liner with longitudinal grooves is affixed to an inner surface of the fuzewell and envelops the fuze. At least one shock damping collar constrains and attenuates shock experienced by the fuze. A shock damping ring is concentric about the outer surface of the fuzewell and attenuates shock between the outermost munition system layer (the casing) and the fuzewell. Longitudinal vents in the fuzewell wall and radial apertures oriented transverse to the longitudinal vents are used for off-gassing. The venting and component orientation combination provides increased damping, resulting in impedance mismatches across multiple interface surfaces in the munition, which reduces shock vibrational pressures and stresses transferred to the fuze.

Embodiments employ venting features and damping components both inside and concentric to a fuzewell to improve munition fuze survivability. Damping components are selected based on their densities and stiffness properties. A shock damping liner with longitudinal grooves is affixed to an inner surface of the fuzewell and envelops the fuze. At least one shock damping collar constrains and attenuates shock experienced by the fuze. A shock damping ring is concentric about the outer surface of the fuzewell and attenuates shock between the outermost munition system layer (the casing) and the fuzewell. Longitudinal vents in the fuzewell wall and radial apertures oriented transverse to the longitudinal vents are used for off-gassing. The venting and component orientation combination provides increased damping, resulting in impedance mismatches across multiple interface surfaces in the munition, which reduces shock vibrational pressures and stresses transferred to the fuze.

An apparatus for storing and/or shipping explosive components, such as shaped charges, is generally described. In an embodiment, the apparatus includes a shielding assembly. The shielding assembly may include a shielding panel having a body made of metal foam and an aperture formed within the body. In an embodiment, the body is sandwiched between an upper and a lower layer. The shielding panel is configured to receive a shaped charge. Thus, the apparatus is capable of at least preventing and/or limiting ballistic transfer in the event of detonation of a shaped charge.

An apparatus for storing and/or shipping explosive components, such as shaped charges, is generally described. In an embodiment, the apparatus includes a shielding assembly. The shielding assembly may include a shielding panel having a body made of metal foam and an aperture formed within the body. In an embodiment, the body is sandwiched between an upper and a lower layer. The shielding panel is configured to receive a shaped charge. Thus, the apparatus is capable of at least preventing and/or limiting ballistic transfer in the event of detonation of a shaped charge.

A heat-activated triggering device, such as for a missile or munition, includes a bi-metal trigger element, with a breakable pin of a first metal surrounded by a sleeve made of a second metal that is different than the first metal. The sleeve may be made of a shape memory alloy, such as a single-crystal shape memory alloy, that is pre-compresses around part of the pin. The sleeve may be configured to put a tension force on the pin as the sleeve passes a predetermined temperature, for instance a temperature at which the shape memory feature of the sleeve is activated. The pin may have a weakened portion, such as a notched portion, at which the pin breaks. The breaking of the pin may be used to drive a firing pin into a primer, to initiate a detonation and/or combustion reaction.

A packaging system includes a container (34) within which are disposed first detonator devices (10) having reactive coils (16), e.g., coils of shock tube leads, and second detonator devices (20) having inert coils (26), e.g., coils of insulated electric leg wires. The inert coils (26) are interposed between the reactive coils (16) and are approximately co-extensive with the reactive coils (16), so that the inert coils (26) form a barrier to propagation of an accidental initiation from one reactive coil (16) to another. Reactive coils (16) and inert coils (26) are fastened to each other to form mixed coil pairs (30) which are nested to interpose a pair of the inert coils (26) between at least some of the reactive coils (16). A method of packing the first and second detonator devices calls for placing them in a container (34) in the described arrangement.

A packaging system includes a container (34) within which are disposed first detonator devices (10) having reactive coils (16), e.g., coils of shock tube leads, and second detonator devices (20) having inert coils (26), e.g., coils of insulated electric leg wires. The inert coils (26) are interposed between the reactive coils (16) and are approximately co-extensive with the reactive coils (16), so that the inert coils (26) form a barrier to propagation of an accidental initiation from one reactive coil (16) to another. Reactive coils (16) and inert coils (26) are fastened to each other to form mixed coil pairs (30) which are nested to interpose a pair of the inert coils (26) between at least some of the reactive coils (16). A method of packing the first and second detonator devices calls for placing them in a container (34) in the described arrangement.

A mobile fireproof and detonation-proof chamber for storage of flammable and detonable objects includes at least one detachable fireproof and detonation-proof container which is swing out from an inner detonation-proof position for storage of flammable- and detonable objects in the mobile chamber to an outer detonation-proof position outside the mobile chamber for loading and unloading fire- and detonation-proof objects, wherein the at least one fire- and detonation-proof container includes a fire-mitigating and detonation-mitigating insert arranged in a detachable manner.

A mobile fireproof and detonation-proof chamber for storage of flammable and detonable objects includes at least one detachable fireproof and detonation-proof container which is swing out from an inner detonation-proof position for storage of flammable- and detonable objects in the mobile chamber to an outer detonation-proof position outside the mobile chamber for loading and unloading fire- and detonation-proof objects, wherein the at least one fire- and detonation-proof container includes a fire-mitigating and detonation-mitigating insert arranged in a detachable manner.

A heat-activated triggering device, such as for a missile or munition, includes a bi-metal trigger element, with a breakable pin of a first metal surrounded by a sleeve made of a second metal that is different than the first metal. The sleeve may be made of a shape memory alloy, such as a single-crystal shape memory alloy, that is pre-compresses around part of the pin. The sleeve may be configured to put a tension force on the pin as the sleeve passes a predetermined temperature, for instance a temperature at which the shape memory feature of the sleeve is activated. The pin may have a weakened portion, such as a notched portion, at which the pin breaks. The breaking of the pin may be used to drive a firing pin into a primer, to initiate a detonation and/or combustion reaction.