An explosive assembly includes a first explosive unit having a first longitudinal end portion having a first mechanical coupling feature, a second explosive unit having a second longitudinal end portion having a second mechanical coupling feature, and a tubular connector having a first end portion m
An explosive assembly includes a first explosive unit having a first longitudinal end portion having a first mechanical coupling feature, a second explosive unit having a second longitudinal end portion having a second mechanical coupling feature, and a tubular connector having a first end portion mechanically coupled to the first mechanical coupling feature and a second end portion mechanically coupled to the second mechanical coupling feature, such that the first explosive unit, the connector, and the second explosive unit are connected together end-to-end along a common longitudinal axis. Each explosive unit can contain a high explosive material and a detonator, and the connector can comprise a detonation control module electrically coupled to the detonators and configured to detonate the explosive units.
대표청구항▼
1. An explosive assembly, comprising: a first explosive unit comprising a first longitudinal end portion having a first mechanical coupling feature and a first detonator for detonating the first explosive unit;a second explosive unit comprising a second longitudinal end portion having a second mecha
1. An explosive assembly, comprising: a first explosive unit comprising a first longitudinal end portion having a first mechanical coupling feature and a first detonator for detonating the first explosive unit;a second explosive unit comprising a second longitudinal end portion having a second mechanical coupling feature and a second detonator for detonating the second explosive unit;a tubular connector having a first end portion mechanically coupled to the first mechanical coupling feature and a second end portion mechanically coupled to the second mechanical coupling feature, such that the first explosive unit, the connector, and the second explosive unit are connected together end-to-end along a common longitudinal axis; anda detonation control module positioned within the tubular connector and electrically coupled to the first and second detonators, the detonation control module configured to provide power pulses to the first and second detonators for initiating detonation of the first and second explosive units. 2. The assembly of claim 1, wherein the first and second explosive units contain an explosive composition. 3. The assembly of claim 2, wherein the explosive composition comprises a non-ideal high explosive designed to yield an energy density being greater than or equal to 12 kJ/cc at theoretical maximum density in use and the time scale of the energy release being in two periods of the detonation phase with 30% to 40% being released in the Taylor expansion wave. 4. The assembly of claim 2, wherein the explosive composition comprises at least one high-performance explosive comprising HMX, TNAZ, RDX, CL-20 or a combination thereof; at least one metal or semimetal comprising Mg, Ti, Si, B, Ta, Zr, Hf, Al or a combination thereof; and at least one reactive cast-cured binders comprising a glycidyl azide polymer, nitrate polymer, polyethylene glycol, or perfluoropolyether derivatives with plasitisizers, wherein the composition is designed to yield an energy density being greater than or equal to 12 kJ/cc at theoretical maximum density in use. 5. The assembly of claim 4, wherein the at least one high performance explosive comprises HMX, the at least one metal or semimetal comprises Al and the at least one reactive cast-cured binders comprises glycidyl azide polymer. 6. The assembly of claim 4, further comprising at least one insensitive explosive, wherein the at least one insensitive explosive comprises TATB, DAAF, NTO, LAX-112, FOX-7 or a combination thereof. 7. The assembly of claim 2, wherein the explosive composition comprises 69% HMX, 15% 3.5 μm atomized Al, 7.5% glycidal azide polymer, 7.5% Fomblin Fluorolink D and 1% methylene diphenyl diisocyanate. 8. The assembly of claim 1, wherein the first mechanical coupling feature comprises a first externally threaded portion, the second mechanical coupling feature comprises a second externally threaded portion, the first end portion of the connector comprises first internal threads that are threaded to the first externally threaded portion of the first explosive unit, and the second end portion of the connector comprises second internal threads that are threaded to the second externally threaded portion of the second explosive unit; and wherein the first and second internal threads of the connector have opposite handedness such that the connector can be threadedly attached to both of the first and second mechanical coupling features at the same time by rotation of the connector in one direction while the first and second mechanical coupling features are held rotationally static. 9. The assembly of claim 8, wherein external threads of the first mechanical coupling feature are left-handed threads and external threads of the second mechanical coupling feature are right-handed threads. 10. The assembly of claim 1, wherein the connector is prevented from rotating relative to the first and second explosive units by a first plate securing the first end portion of the connector to the first longitudinal end portion of the first explosive unit and a second plate securing the second end portion of the connector to the second longitudinal end portion of the second explosive unit. 11. The assembly of claim 1, wherein the detonation control module comprises an optically triggered diode coupled between a high-voltage capacitor and the at least one detonator, the high-voltage capacitor providing the power pulse to the at least one detonator when the optically triggered diode allows current flow from the high-voltage capacitor. 12. The assembly of claim 11, wherein the detonation control module further comprises a laser diode that illuminates the optically triggered diode to allow the current flow from the high-voltage capacitor. 13. The assembly of claim 11, wherein the optically triggered diode is reverse biased, and wherein the current flow from the high-voltage capacitor is caused by the optically triggered diode undergoing avalanche breakdown. 14. The assembly of claim 1, wherein at least one of the first and second explosive units comprises a projection coupled to the detonation control module, wherein the projection fixes the rotational position of the detonation control module relative to the respective explosive unit while allowing the connector to rotate relative to the respective explosive unit and the detonation control module. 15. The assembly of claim 14, wherein the projection comprises an axially extending pin. 16. The assembly of claim 14, wherein each of the first and second explosive units comprises associated respective projections coupled to the detonation control module, wherein the projections fix the rotational position of the detonation control module relative to the associated explosive unit while allowing the connector to rotate relative to the first and second explosive units and the detonation control module while the first and second explosive units and the detonation control module remain fixed in rotational alignment. 17. The assembly of claim 1, wherein at least one of the first and second explosive units contains a propellant. 18. The assembly of claim 17, wherein each of the first and second explosive units further comprises two propellant detonators, one at each axial end of each of the explosive units. 19. The assembly of claim 18, wherein the propellant detonators comprise a ceramic jet detonator. 20. The assembly of claim 1, wherein the detonation control module is fixed rotationally relative to the first and second explosive units and the tubular connector is rotatable around the detonation control module, such that the tubular connector can be rotationally coupled to the first and second longitudinal end portions while the detonation control module remains rotationally static relative to the first and second explosive units. 21. The assembly of claim 8, wherein rotation of the connector in one direction while the first and second mechanical coupling features are held rotationally static draws the first and second explosive units longitudinally toward each other. 22. The assembly of claim 1, further comprising rotational bearings between the connector and the detonation control module, wherein the rotational bearings maintain axial alignment between the connector and the detonation control module while allowing rotation of the connector relative to the detonation control module. 23. A method of assembling an explosive assembly, comprising: positioning a connector between two explosive units with a detonation control module positioned within the connector;electrically coupling the detonation control module to at least one detonator of the explosive units; andwhile the two explosive units and the detonation control module are maintained in rotational alignment relative to one another, rotating the connector in one direction relative to the two explosive units and the detonation control module to mechanically couple the two explosive units together via the connector. 24. The method of claim 23, wherein positioning a connector between the two explosive units with the detonation control module positioned within the connector comprises coupling the detonation control module to a first explosive unit of the two explosive units via a longitudinally extending pin the fixes the detonation control module rotationally relative to the first explosive unit while allowing the first explosive unit to move longitudinally relative to the detonation control module. 25. The method of claim 24, wherein rotating the connector draws the two explosive units longitudinally together while the pin prevents the detonation control module from rotating relative to the first explosive unit. 26. The method of claim 23, further comprising securing the connector to the two explosive units by attaching respective plates over joints between the two explosive units and the connector, wherein the plates prevent the explosive units from disconnecting from the connector while allowing off-axis bending of the assembly at the joints.
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