Structure for Shaping and Applying a Propagating Shock Wave to an Area of an Explosive Load to Increase an Energetic Shock Impact Effect on a Target |
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申请号 | US14606222 | 申请日 | 2015-01-27 | 公开(公告)号 | US20160216085A1 | 公开(公告)日 | 2016-07-28 |
申请人 | The United State of America as represented by the Secretary of the Navy; | 发明人 | Eric Scheid; Jaime Villamil; | ||||
摘要 | Various embodiments including an improved shaped demolition charge apparatus and methods associated with the invention are provided in a cylindrical dynamic access structure (“CDAS”), which can include a wave shaper, a main charge, and a booster disk. An exemplary embodiment comprises a waver shaper, and a main charge, which can be plastic, bonded explosive. A wave shaper can comprise of two-layered structure in which a void is formed. A wave shaper can be disposed between a booster disk and a main charge such that the booster disk is only in contact with the main charge along an outer edge of the booster disk. A wave shaper directs or channels a shock wave from the booster disk to an outer portion of the main charge. A container can be formed or adapted around a cover, booster disk, main charge, and wave shaper. | ||||||
权利要求 | |||||||
说明书全文 | The invention described herein includes contributions by one or more employees of the Department of the Navy made in performance of official duties and may be manufactured, used and licensed by or for the United States Government for any governmental purpose without payment of any royalties thereon. This invention (Navy Case 101,477) is assigned to the United States Government and is available for licensing for commercial purposes. Licensing and technical inquiries may be directed to the Technology Transfer Office, Naval Surface Warfare Center Crane, email: Cran_CTO@navy.mil. Aspects disclosed herein relate to the field of explosive devices. In particular, one embodiment can include a cylindrical dynamic access structure with a plastic bonded explosive material. Typical bulk explosive charge includes generic containers or other simple configurations consisting primarily of packaged or hand packed explosive, e.g., C4 or TNT. The performance of these devices is inefficient both in how they are initiated and how the shock wave progresses through the explosive in such a device. Therefore, more explosive materials are required by these devices than would otherwise be necessary with a more optimal design. Furthermore, some of these bulk explosive designs have safety issues that can be improved. An apparatus in accordance with an embodiment of the invention provides a demolition charge with enhanced capabilities beyond those of traditional bulk charges. A cylindrical dynamic access structure (“CDAS”) with plastic bonded explosive combines an optimized shock wave of the CDAS design with a high performance precision explosive. A charge that combines a CDAS design and plastic bonded explosive according to an embodiment of the invention can perform, for example, twenty percent to thirty percent more effectively than traditional C4 bulk charges. One advantage of an exemplary embodiment is an ability to produce increased output from a charge mass than a bulk charge could produce with a similar charge mass and a detonator without an embodiment of the invention. Additionally, increased effectiveness of an exemplary embodiment allows a bulk charge having less mass than bulk charges without an embodiment of the invention. Another advantage of an embodiment of the invention is an ability to produce a more energetic shock impact on the target than provided by traditional bulk charges. Traditionally charges have less optimal shock front impacts in the form of point contact or shock fronts directed parallel to the charge. For example, an exemplary embodiment provides an impact that is cylindrical. This cylindrical loading has at least two advantages. First, the cylindrical loading provided by the CDAS results in an intense load applied simultaneously over a greater area. Second, cylindrical loading provided by the exemplary CDAS results in further amplification of energy in a form of colliding shocks developed as a shock wave expands towards the center of the cylinder. In one embodiment, a combination of the CDAS design and plastic bonded explosive load amplifies the effectiveness of the hardware design. Plastic bonded explosive is more energetic than hand loaded explosives such as, for example, C4. Also, a production loaded explosive, e.g., plastic bonded explosive, is more uniform and more dense, which provides a more uniform and energetic detonation. An apparatus in accordance with an embodiment of the invention provides additional advantages as well. Such an apparatus, for example, provides the user with a factory loaded charge, thus eliminating the need to hand-build traditional demolition charges. This saves the user time and improves safety by reducing direct exposure to explosive chemicals and the risks associated with hand-forming energetic materials. Also, the CDAS can incorporate a priming or detonator well placed through a cover, e.g., a center of the cover, of the CDAS outer shell allowing for easy installation and removal of detonators or primers with various diameters without the need for additional adapters for a detonator or primer and also providing for quick installation or removal of the detonator or primer. Additional features and advantages of the present invention will become apparent to those skilled in the art upon consideration of the following detailed description of the illustrative embodiment exemplifying the best mode of carrying out the invention as presently perceived. The detailed description of the drawings particularly refers to the accompanying figures in which: The embodiments of the invention described herein are not intended to be exhaustive or to limit the invention to precise forms disclosed. Rather, the embodiments selected for description have been chosen to enable one skilled in the art to practice the invention. Referring initially to Referring to The exemplary embodiment shown in Referring to Referring to Note that an exemplary embodiment can omit step 58 until a time the CDAS is ready for use. An exemplary wave shaper can be formed by either, for example, one piece or multiple pieces thereby forming a void inside the wave shaper which can have for example, air, gas, or the like within it. An exemplary main charge can be adapted so that it can be inserted into the container, leaving an open area for a wave shaper and an enclosed area between the inner wall of the container, and the outer wall of the wave shaper, which allows the outer area of the main charge to be in contact with a booster disk. An exemplary main charge can be placed so that it is adjacent to and touches the outer area of a booster disk, surrounds the waver shaper, and also in lateral contact with an inner wall of a container. An exemplary base can be placed adjacent to a main charge and connected to a container. Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the spirit and scope of the invention as described and defined in the following claims. |