US20110239888A1 - Reactive shaped charge, reactive liner, and method for target penetration using a reactive shaped charge - Google Patents
Reactive shaped charge, reactive liner, and method for target penetration using a reactive shaped charge Download PDFInfo
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- US20110239888A1 US20110239888A1 US12/336,796 US33679608A US2011239888A1 US 20110239888 A1 US20110239888 A1 US 20110239888A1 US 33679608 A US33679608 A US 33679608A US 2011239888 A1 US2011239888 A1 US 2011239888A1
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- ZBMRKNMTMPPMMK-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid;azane Chemical compound [NH4+].CP(O)(=O)CCC(N)C([O-])=O ZBMRKNMTMPPMMK-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
- F42B1/02—Shaped or hollow charges
- F42B1/032—Shaped or hollow charges characterised by the material of the liner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
- F42B1/02—Shaped or hollow charges
- F42B1/028—Shaped or hollow charges characterised by the form of the liner
Definitions
- Some embodiments pertain to reactive shaped charges and shaped-charge warheads. Some embodiments pertain to reactive materials. Some embodiments pertain to reactive liners suitable for use in lined shaped charges. Some embodiments pertain to warheads and precision lethal technology.
- a lined shaped charge generates an enormous amount of pressure by detonation of an explosive to drive a liner to penetrate a target.
- the residual liner material perforates a target's protective barrier and enters a confined target space. Because many conventional shaped charges use inert liner material, the residual liner material deposits only a small amount of energy, in the form of heat and pressure, before exiting the target.
- Conventional penetrating warheads require allocation of substantial warhead mass to survive an impact with a target and to perforate a protective target barrier to enable detonation of energetic materials within the target space.
- FIG. 1 illustrates a reactive shaped charge in accordance with some embodiments
- FIGS. 2A-2E illustrate shaped charges with shaped reactive liners in accordance with various embodiments
- FIGS. 2F-2H illustrate warheads with reactive liners in accordance with various stacked configuration embodiments
- FIGS. 3A and 3B illustrate side and perspective views of a warhead with a reactive liner in accordance with some embodiments
- FIGS. 4A and 4B illustrate side and perspective views of a warhead with a reactive liner in accordance with some other embodiments.
- FIG. 5 illustrates an exploded view of a hyperbaric TOW Bunker Buster warhead in accordance with some embodiments.
- FIG. 1 illustrates a reactive shaped charge in accordance with some embodiments.
- Reactive shaped charge 100 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel.
- Reactive liner 102 may be provided in a sealed region 105 between outer barrier 108 and inner barrier 106 .
- Reactive shaped charge 100 may also include detonator 112 and casing 110 as illustrated, as well as other elements associated with conventional shaped charges.
- the hydrocarbon fuel fills the interstitial spacing between the reactive metal particles to provide the matrix that comprises reactive liner 102 .
- the matrix may be tightly packed to exhibit a solid property and so as to retain its shape unsupported by any structural housing exhibiting a non-liquid quality (i.e., a solid or solid-like property).
- reactive liner 102 is free of oxidant. In these embodiments, because the reactive liner is free from and devoid of an oxidant, any reaction may be delayed until liner 102 is dispersed and exposed to oxygen in the confined space of the target.
- reactive liner 102 may include an oxidant, such as ammonium perchlorate or a synthetic fluoro-polymer, although the scope of the embodiments is not limited in this respect.
- oxidant such as ammonium perchlorate or a synthetic fluoro-polymer
- synthetic fluoro-polymers include poly-tetra-fluoro-ethylene or poly-tetra-fluoro-ethene (PTFE).
- the reactive metal particles of the matrix may comprise a single reactive metal selected from the group consisting of aluminum, magnesium, zirconium, titanium and boron. In these embodiments, almost any metal that reacts with air or oxygen may be used. In some embodiments, metalloids may be used. Metalloids may have properties of both metals and non-metals.
- the reactive metal particles may comprise two or more reactive metals selected from the group consisting of aluminum, magnesium, zirconium, titanium and boron.
- the two or more metals may be selected for reactive burn rate and matrix effective density, although the scope of the embodiments is not limited in this respect.
- metalloids may also be used.
- sealed region 105 provided between inner barrier 106 and outer barrier 108 may be hermetically sealed, although the scope of the embodiments is not limited in this respect.
- inner barrier 106 and outer barrier 108 may have a trumpet-like shape (as shown in FIG. 1 ) to provide reactive liner 102 in a trumpet-like shape with apex 116 toward detonator 112 .
- reactive liner 102 may form a jet directed in direction 114 (i.e., toward a target).
- the matrix of reactive metal particles and hydrocarbon fuel may disperse and mix with ambient air within a target space and may then rapidly combust after perforation of a protective target barrier.
- reactive liner 102 may be configured to have a low effective shear strength in tension.
- the effective shear strength of reactive liner 102 may be lower than some conventional liners that, for example, include metal particles suspended in a wax.
- reactive liner 102 may act like a liquid (shear flow) under high pressure (e.g., when high explosive 104 ignites).
- reactive shaped charge 100 may include one or more liner fill ports 103 to allow sealed region 105 to be filled with the matrix of reactive metal particles and hydrocarbon fuel. Sealed region 105 may be filled through liner fill ports 103 by performing a process that includes pouring the matrix of reactive metal particles and hydrocarbon fuel into region 105 through liner fill ports 103 . The process may also include waiting for the reactive metal particles to settle and for excess liquid comprising the hydrocarbon fuel to form on a top surface near liner fill ports 103 . The process may also include removing the excess liquid and/or the pouring, waiting and removing until region 105 is completely filled and/or until the density of the matrix is maximized. In some embodiments, this “settling-out” process may include pressing or compressing the matrix to help maximize or customize the density. Once region 105 is completely filled and/or the density of the matrix is maximized, the matrix may exhibit a solid property.
- the matrix may be initially provided in a slurry form with a lower density and steps of the process may be repeated to increase the density of the matrix or until a minimum density (e.g., between 2 and 4 g/cc) is achieved.
- the hydrocarbon fuel may be in a liquid state, although the scope of the embodiments is not limited in this respect. In other embodiments, the hydrocarbon fuel may be in a gas state. In other embodiments, the matrix may be provided in a higher density form in which the matrix is compressed to reduce the interstitial spacing between the metal particles and displace the lower density hydrocarbon fuel.
- a pressing operation may be performed to pre-form solid liners from the matrix. These pre-formed solid lines may be installed in a shaped charge. Alternatively, a pressing operation may be performed “in-situ” to form the solid liner in the shaped charge, although the scope of the embodiments is not limited in this respect.
- reactive liner 102 includes an oxidant
- the oxidant may be mixed in with the metal particles and the hydrocarbon fuel before the settling out and/or pressing operations described above.
- inner barrier 106 may comprise metallic material, such as copper, aluminum, titanium, and tantalum. In some other embodiments, inner barrier 106 may comprise a non-metallic material, such as nylon. In some embodiments, outer barrier 108 may comprise copper, aluminum, titanium, and tantalum.
- high explosive 104 may be a HMX based composition, such as PBXN-110, or may comprise RDX based compositions although other high explosives may also be suitable.
- the hydrocarbon fuel used in reactive liner 102 may comprise a jet fuel such as JP-5, JP-8 or JP-10, although other fuels, such as kerosene, gasoline and diesel may also be suitable.
- reactive liner 102 is illustrated in FIG. 1 as having a trumpet-like shape, the scope of the embodiments is not limited in this respect as reactive liner 102 may be configured to have almost any shape. Some of these other embodiments are described in more detail below.
- Reactive shaped charge 100 may be suitable for use as a warhead in guided and unguided anti-tank missiles, spun and unspun gun-fired projectiles, rifle fired grenades, mines bomblets, torpedoes as well as other launched projectiles and missiles.
- FIG. 2A illustrates shaped charge 230 with a conical-shaped reactive liner 102 in accordance with some embodiments.
- Shaped charge 230 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- both inner barrier 106 and outer barrier 108 have conical shapes with differing apex angles to define reactive liner 102 having a conical shape with apex 116 toward detonator 112 .
- Shaped charge 230 may also include fill ports 103 .
- FIG. 2B illustrates shaped charge 240 with a conical-shaped reactive liner in accordance with some other embodiments.
- Reactive shaped charge 240 includes reactive liner 102 , high explosive 104 , inner barrier 106 separating reactive liner 102 from high explosive 104 , and detonator 112 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- inner barrier 106 has a conical shape and outer barrier 108 provides a flat base to define reactive liner 102 .
- sealed region 105 may comprise a volume of a cone.
- FIG. 2C illustrates shaped charge 270 with a shaped reactive liner in accordance with some embodiments.
- Reactive shaped charge 270 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- inner barrier 106 has a trumpet-like shape and outer barrier 108 has hemispherical shape 218 to define sealed region 105 that comprises reactive liner 102 .
- Apex 216 of inner barrier 106 is nearer detonator 112 as shown.
- shaped charge 270 may include fill ports (not illustrated).
- FIG. 2D illustrates shaped charge 250 with a shaped reactive liner in accordance with some embodiments.
- Reactive shaped charge 250 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- both inner barrier 106 and outer barrier 108 have a curved (e.g., hemispherical) shape as shown to define sealed region 105 that comprises reactive liner 102 .
- reactive liner 102 may have a curved shape that is convex with respect to detonator 112 .
- shaped charge 250 may also include fill ports 103 .
- FIG. 2E illustrates shaped charge 260 with a shaped reactive liner in accordance with some embodiments.
- Reactive shaped charge 260 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- inner barrier 106 may have a curved (e.g., hemispherical) shape and outer barrier 108 may be substantially flat to define sealed region 105 .
- the curved shape of inner barrier 106 may be convex with respect to detonator 112 .
- FIG. 2F illustrates warhead 200 with a reactive liner in accordance with stacked configuration embodiments.
- Warhead 200 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- reactive liner 102 and high explosive 104 are arranged in a stacked configuration as illustrated within casing 110 .
- inner barrier 106 and outer barrier 108 are substantially flat.
- FIG. 2G illustrates warhead 210 with a reactive liner in accordance with some other stacked configuration embodiments.
- Warhead 210 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- reactive liner 102 and high explosive 104 are arranged in a stacked configuration within casing 110 .
- inner barrier 106 is flat. These embodiments may be referred to as bunker buster embodiments and are described in more detail below.
- FIG. 2H illustrates warhead 220 with a reactive liner in accordance with some other stacked configuration embodiments.
- Warhead 220 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- reactive liner 102 and high explosive 104 are arranged in a stacked configuration within casing 110 .
- inner barrier 106 is flat.
- pre-formed metal shapes 222 may be provided for fragmentation effects on a target within an outer region of casing 110 (i.e., outside the region containing the high explosive 104 ).
- pre-formed metal shapes 222 may comprise a plurality of steel and aluminum balls may have a diameter of approximately a quarter inch, although the scope of the embodiments is not limited in this respect.
- FIGS. 3A and 3B illustrate side and perspective views of warhead 300 with a reactive liner in accordance with some embodiments.
- Warhead 300 includes reactive liner 102 , high explosive 104 , and inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- reactive liner 102 may have a star-like cylindrical shape provided longitudinally within casing 110 of warhead 300 as illustrated.
- high explosive 104 may comprise an inner star-like cylindrical region and reactive liner 102 may comprise an outer star-like cylindrical region as illustrated.
- FIGS. 4A and 4B illustrate side and perspective views of warhead 400 with a reactive liner in accordance with some other embodiments.
- Warhead 400 includes reactive liner 102 , high explosive 104 , and an inner barrier 106 separating reactive liner 102 from high explosive 104 .
- Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- reactive liner 102 and high explosive 104 may be arranged in a cylindrical configuration provided longitudinally within casing 110 of warhead 400 .
- high explosive 104 may comprise an inner cylindrical region and reactive liner 102 may comprise an outer cylindrical region as illustrated.
- FIG. 5 illustrates an exploded view of a hyperbaric TOW Bunker Buster warhead in accordance with some embodiments.
- Warhead 500 includes case 510 , reactive liner 502 , canister 506 to hold high explosive 504 , and o-ring 508 to seal canister 506 .
- Reactive liner 502 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.
- Warhead 500 may also include igniter 512 , which may be referred to as an initiation assembly.
- Warhead 500 may correspond to warhead 210 ( FIG. 2G ) in which reactive liner 502 may correspond to reactive liner 102 ( FIG. 2G ) and high explosive 504 may correspond to high explosive 104 ( FIG. 2G ).
- the reactive liner for use in a shaped charge or warhead.
- the reactive liner comprises a matrix of reactive metal particles in a hydrocarbon fuel.
- the hydrocarbon fuel fills in the interstitial spacing between the reactive metal particles.
- the matrix may be tightly packed or compressed to exhibit a solid property.
- the reactive liner may be free of oxidant.
- the reactive line may include an oxidant.
- a method for penetrating a target with a reactive shaped charge is provided.
- the reactive shaped charge may include a reactive liner, such as reactive liner 102 , and a high explosive.
- the method may include launching the reactive shaped charge toward a target and detonating the high explosive.
- the detonation of the high explosive may cause the reactive liner to form a high velocity jet to perforate protective target barriers and to disperse and mix with air in a target space followed by a rapid combustion of the mixture of the reactive metal particles, the hydrocarbon fuel and the air.
- the reactive liner may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above and may be provided in a sealed region.
- the hydrocarbon fuel may fill the interstitial spacing between the reactive metal particles.
- the matrix of the reactive metal particles and the hydrocarbon fuel may be tightly packed to exhibit a solid property.
Abstract
Description
- This Patent Application claims priority to U.S. Provisional Patent Application Ser. No. 61/060,632, filed Jun. 11, 2008 entitled “APPARATUS AND METHODS FOR REACTIVE SHAPED CHARGE”, the entire contents of which is incorporated herein by reference.
- Some embodiments pertain to reactive shaped charges and shaped-charge warheads. Some embodiments pertain to reactive materials. Some embodiments pertain to reactive liners suitable for use in lined shaped charges. Some embodiments pertain to warheads and precision lethal technology.
- A lined shaped charge generates an enormous amount of pressure by detonation of an explosive to drive a liner to penetrate a target. In conventional shaped charges, the residual liner material perforates a target's protective barrier and enters a confined target space. Because many conventional shaped charges use inert liner material, the residual liner material deposits only a small amount of energy, in the form of heat and pressure, before exiting the target. Conventional penetrating warheads require allocation of substantial warhead mass to survive an impact with a target and to perforate a protective target barrier to enable detonation of energetic materials within the target space.
- Thus, what are needed are reactive shaped charges that are capable of perforating protective target barriers followed by signification energy release inside the confined target space. What are also needed are reactive liners suitable for use in shaped charges, and warheads that maximize the allocation of payload mass to the energetic verses inert material components.
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FIG. 1 illustrates a reactive shaped charge in accordance with some embodiments; -
FIGS. 2A-2E illustrate shaped charges with shaped reactive liners in accordance with various embodiments; -
FIGS. 2F-2H illustrate warheads with reactive liners in accordance with various stacked configuration embodiments; -
FIGS. 3A and 3B illustrate side and perspective views of a warhead with a reactive liner in accordance with some embodiments; -
FIGS. 4A and 4B illustrate side and perspective views of a warhead with a reactive liner in accordance with some other embodiments; and -
FIG. 5 illustrates an exploded view of a hyperbaric TOW Bunker Buster warhead in accordance with some embodiments. - The following description and the drawings sufficiently illustrate specific embodiments to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. Examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of other embodiments. Embodiments set forth in the claims encompass all available equivalents of those claims.
-
FIG. 1 illustrates a reactive shaped charge in accordance with some embodiments. Reactiveshaped charge 100 includesreactive liner 102, high explosive 104, andinner barrier 106 separatingreactive liner 102 from high explosive 104. In accordance with some embodiments,reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel.Reactive liner 102 may be provided in a sealedregion 105 betweenouter barrier 108 andinner barrier 106. Reactiveshaped charge 100 may also includedetonator 112 andcasing 110 as illustrated, as well as other elements associated with conventional shaped charges. - In accordance with some embodiments, the hydrocarbon fuel fills the interstitial spacing between the reactive metal particles to provide the matrix that comprises
reactive liner 102. The matrix may be tightly packed to exhibit a solid property and so as to retain its shape unsupported by any structural housing exhibiting a non-liquid quality (i.e., a solid or solid-like property). - In some embodiments,
reactive liner 102 is free of oxidant. In these embodiments, because the reactive liner is free from and devoid of an oxidant, any reaction may be delayed untilliner 102 is dispersed and exposed to oxygen in the confined space of the target. - In some alternate embodiments,
reactive liner 102 may include an oxidant, such as ammonium perchlorate or a synthetic fluoro-polymer, although the scope of the embodiments is not limited in this respect. Examples of synthetic fluoro-polymers include poly-tetra-fluoro-ethylene or poly-tetra-fluoro-ethene (PTFE). - In some embodiments, the reactive metal particles of the matrix may comprise a single reactive metal selected from the group consisting of aluminum, magnesium, zirconium, titanium and boron. In these embodiments, almost any metal that reacts with air or oxygen may be used. In some embodiments, metalloids may be used. Metalloids may have properties of both metals and non-metals.
- In some alternate embodiments, the reactive metal particles may comprise two or more reactive metals selected from the group consisting of aluminum, magnesium, zirconium, titanium and boron. The two or more metals may be selected for reactive burn rate and matrix effective density, although the scope of the embodiments is not limited in this respect. In these embodiments, metalloids may also be used.
- In some embodiments,
sealed region 105 provided betweeninner barrier 106 andouter barrier 108 may be hermetically sealed, although the scope of the embodiments is not limited in this respect. - In some embodiments,
inner barrier 106 andouter barrier 108 may have a trumpet-like shape (as shown inFIG. 1 ) to providereactive liner 102 in a trumpet-like shape withapex 116 towarddetonator 112. When high explosive 104 is detonated,reactive liner 102 may form a jet directed in direction 114 (i.e., toward a target). The matrix of reactive metal particles and hydrocarbon fuel may disperse and mix with ambient air within a target space and may then rapidly combust after perforation of a protective target barrier. - In some embodiments,
reactive liner 102 may be configured to have a low effective shear strength in tension. In these embodiments, the effective shear strength ofreactive liner 102 may be lower than some conventional liners that, for example, include metal particles suspended in a wax. In accordance with embodiments of the present invention,reactive liner 102 may act like a liquid (shear flow) under high pressure (e.g., when high explosive 104 ignites). - In some embodiments, reactive
shaped charge 100 may include one or moreliner fill ports 103 to allow sealedregion 105 to be filled with the matrix of reactive metal particles and hydrocarbon fuel. Sealedregion 105 may be filled throughliner fill ports 103 by performing a process that includes pouring the matrix of reactive metal particles and hydrocarbon fuel intoregion 105 throughliner fill ports 103. The process may also include waiting for the reactive metal particles to settle and for excess liquid comprising the hydrocarbon fuel to form on a top surface nearliner fill ports 103. The process may also include removing the excess liquid and/or the pouring, waiting and removing untilregion 105 is completely filled and/or until the density of the matrix is maximized. In some embodiments, this “settling-out” process may include pressing or compressing the matrix to help maximize or customize the density. Onceregion 105 is completely filled and/or the density of the matrix is maximized, the matrix may exhibit a solid property. - In some embodiments, the matrix may be initially provided in a slurry form with a lower density and steps of the process may be repeated to increase the density of the matrix or until a minimum density (e.g., between 2 and 4 g/cc) is achieved. In these embodiments, the hydrocarbon fuel may be in a liquid state, although the scope of the embodiments is not limited in this respect. In other embodiments, the hydrocarbon fuel may be in a gas state. In other embodiments, the matrix may be provided in a higher density form in which the matrix is compressed to reduce the interstitial spacing between the metal particles and displace the lower density hydrocarbon fuel.
- In some alternate embodiments, a pressing operation may be performed to pre-form solid liners from the matrix. These pre-formed solid lines may be installed in a shaped charge. Alternatively, a pressing operation may be performed “in-situ” to form the solid liner in the shaped charge, although the scope of the embodiments is not limited in this respect.
- In the alternate embodiments that
reactive liner 102 includes an oxidant, the oxidant may be mixed in with the metal particles and the hydrocarbon fuel before the settling out and/or pressing operations described above. - In some embodiments,
inner barrier 106 may comprise metallic material, such as copper, aluminum, titanium, and tantalum. In some other embodiments,inner barrier 106 may comprise a non-metallic material, such as nylon. In some embodiments,outer barrier 108 may comprise copper, aluminum, titanium, and tantalum. In some embodiments,high explosive 104 may be a HMX based composition, such as PBXN-110, or may comprise RDX based compositions although other high explosives may also be suitable. In some embodiments, the hydrocarbon fuel used inreactive liner 102 may comprise a jet fuel such as JP-5, JP-8 or JP-10, although other fuels, such as kerosene, gasoline and diesel may also be suitable. - Although
reactive liner 102 is illustrated inFIG. 1 as having a trumpet-like shape, the scope of the embodiments is not limited in this respect asreactive liner 102 may be configured to have almost any shape. Some of these other embodiments are described in more detail below. Reactive shapedcharge 100, as well as the various embodiments that usereactive liner 102 discussed below, may be suitable for use as a warhead in guided and unguided anti-tank missiles, spun and unspun gun-fired projectiles, rifle fired grenades, mines bomblets, torpedoes as well as other launched projectiles and missiles. -
FIG. 2A illustrates shapedcharge 230 with a conical-shapedreactive liner 102 in accordance with some embodiments.Shaped charge 230 includesreactive liner 102,high explosive 104, andinner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. Inshaped charge 230, bothinner barrier 106 andouter barrier 108 have conical shapes with differing apex angles to definereactive liner 102 having a conical shape withapex 116 towarddetonator 112.Shaped charge 230 may also include fillports 103. -
FIG. 2B illustrates shapedcharge 240 with a conical-shaped reactive liner in accordance with some other embodiments. Reactive shapedcharge 240 includesreactive liner 102,high explosive 104,inner barrier 106 separatingreactive liner 102 fromhigh explosive 104, anddetonator 112.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments,inner barrier 106 has a conical shape andouter barrier 108 provides a flat base to definereactive liner 102. In these embodiments, sealedregion 105 may comprise a volume of a cone. -
FIG. 2C illustrates shapedcharge 270 with a shaped reactive liner in accordance with some embodiments. Reactive shapedcharge 270 includesreactive liner 102,high explosive 104, andinner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments,inner barrier 106 has a trumpet-like shape andouter barrier 108 hashemispherical shape 218 to define sealedregion 105 that comprisesreactive liner 102.Apex 216 ofinner barrier 106 isnearer detonator 112 as shown. In some embodiments, shapedcharge 270 may include fill ports (not illustrated). -
FIG. 2D illustrates shapedcharge 250 with a shaped reactive liner in accordance with some embodiments. Reactive shapedcharge 250 includesreactive liner 102,high explosive 104, andinner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments, bothinner barrier 106 andouter barrier 108 have a curved (e.g., hemispherical) shape as shown to define sealedregion 105 that comprisesreactive liner 102. In these embodiments,reactive liner 102 may have a curved shape that is convex with respect todetonator 112. In some embodiments, shapedcharge 250 may also include fillports 103. -
FIG. 2E illustrates shapedcharge 260 with a shaped reactive liner in accordance with some embodiments. Reactive shapedcharge 260 includesreactive liner 102,high explosive 104, andinner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments,inner barrier 106 may have a curved (e.g., hemispherical) shape andouter barrier 108 may be substantially flat to define sealedregion 105. In these embodiments, the curved shape ofinner barrier 106 may be convex with respect todetonator 112. -
FIG. 2F illustrateswarhead 200 with a reactive liner in accordance with stacked configuration embodiments.Warhead 200 includesreactive liner 102,high explosive 104, andinner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments,reactive liner 102 andhigh explosive 104 are arranged in a stacked configuration as illustrated withincasing 110. In these embodiments,inner barrier 106 andouter barrier 108 are substantially flat. -
FIG. 2G illustrateswarhead 210 with a reactive liner in accordance with some other stacked configuration embodiments.Warhead 210 includesreactive liner 102,high explosive 104, andinner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments,reactive liner 102 andhigh explosive 104 are arranged in a stacked configuration withincasing 110. In these embodiments,inner barrier 106 is flat. These embodiments may be referred to as bunker buster embodiments and are described in more detail below. -
FIG. 2H illustrateswarhead 220 with a reactive liner in accordance with some other stacked configuration embodiments.Warhead 220 includesreactive liner 102,high explosive 104, andinner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments,reactive liner 102 andhigh explosive 104 are arranged in a stacked configuration withincasing 110. In these embodiments,inner barrier 106 is flat. In some of these embodiments, pre-formed metal shapes 222 may be provided for fragmentation effects on a target within an outer region of casing 110 (i.e., outside the region containing the high explosive 104). In some embodiments, pre-formed metal shapes 222 may comprise a plurality of steel and aluminum balls may have a diameter of approximately a quarter inch, although the scope of the embodiments is not limited in this respect. -
FIGS. 3A and 3B illustrate side and perspective views ofwarhead 300 with a reactive liner in accordance with some embodiments.Warhead 300 includesreactive liner 102,high explosive 104, andinner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments,reactive liner 102 may have a star-like cylindrical shape provided longitudinally within casing 110 ofwarhead 300 as illustrated. In these embodiments,high explosive 104 may comprise an inner star-like cylindrical region andreactive liner 102 may comprise an outer star-like cylindrical region as illustrated. -
FIGS. 4A and 4B illustrate side and perspective views ofwarhead 400 with a reactive liner in accordance with some other embodiments.Warhead 400 includesreactive liner 102,high explosive 104, and aninner barrier 106 separatingreactive liner 102 fromhigh explosive 104.Reactive liner 102 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above. In these embodiments,reactive liner 102 andhigh explosive 104 may be arranged in a cylindrical configuration provided longitudinally within casing 110 ofwarhead 400. In these embodiments,high explosive 104 may comprise an inner cylindrical region andreactive liner 102 may comprise an outer cylindrical region as illustrated. -
FIG. 5 illustrates an exploded view of a hyperbaric TOW Bunker Buster warhead in accordance with some embodiments.Warhead 500 includescase 510,reactive liner 502,canister 506 to holdhigh explosive 504, and o-ring 508 to sealcanister 506.Reactive liner 502 may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above.Warhead 500 may also includeigniter 512, which may be referred to as an initiation assembly.Warhead 500 may correspond to warhead 210 (FIG. 2G ) in whichreactive liner 502 may correspond to reactive liner 102 (FIG. 2G ) andhigh explosive 504 may correspond to high explosive 104 (FIG. 2G ). - Some embodiments of the present invention provide a reactive liner for use in a shaped charge or warhead. In these embodiments, the reactive liner comprises a matrix of reactive metal particles in a hydrocarbon fuel. The hydrocarbon fuel fills in the interstitial spacing between the reactive metal particles. The matrix may be tightly packed or compressed to exhibit a solid property. In some embodiments, the reactive liner may be free of oxidant. In alternate embodiments, the reactive line may include an oxidant.
- In some embodiments, a method for penetrating a target with a reactive shaped charge is provided. In these embodiments, the reactive shaped charge may include a reactive liner, such as
reactive liner 102, and a high explosive. - The method may include launching the reactive shaped charge toward a target and detonating the high explosive. The detonation of the high explosive may cause the reactive liner to form a high velocity jet to perforate protective target barriers and to disperse and mix with air in a target space followed by a rapid combustion of the mixture of the reactive metal particles, the hydrocarbon fuel and the air. In these embodiments, the reactive liner may comprise a matrix of reactive metal particles in a hydrocarbon fuel as discussed above and may be provided in a sealed region. The hydrocarbon fuel may fill the interstitial spacing between the reactive metal particles. The matrix of the reactive metal particles and the hydrocarbon fuel may be tightly packed to exhibit a solid property.
- The Abstract is provided to comply with 37 C.F.R. Section 1.72(b) requiring an abstract that will allow the reader to ascertain the nature and gist of the technical disclosure. It is submitted with the understanding that it will not be used to limit or interpret the scope or meaning of the claims. The following claims are hereby incorporated into the detailed description, with each claim standing on its own as a separate embodiment.
Claims (34)
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US12/336,796 US8037829B1 (en) | 2008-06-11 | 2008-12-17 | Reactive shaped charge, reactive liner, and method for target penetration using a reactive shaped charge |
US13/269,219 US8240251B2 (en) | 2008-06-11 | 2011-10-07 | Reactive shaped charge, reactive liner, and method for target penetration using a reactive shaped charge |
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US6063208P | 2008-06-11 | 2008-06-11 | |
US12/336,796 US8037829B1 (en) | 2008-06-11 | 2008-12-17 | Reactive shaped charge, reactive liner, and method for target penetration using a reactive shaped charge |
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US13/269,219 Active US8240251B2 (en) | 2008-06-11 | 2011-10-07 | Reactive shaped charge, reactive liner, and method for target penetration using a reactive shaped charge |
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US20150316360A1 (en) * | 2012-12-13 | 2015-11-05 | Qinetiq Limited | Shaped charge and method of modifying a shaped charge |
US9188413B2 (en) * | 2009-11-25 | 2015-11-17 | The Secretary Of State For Defense | Shaped charge casing |
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US8037829B1 (en) | 2008-06-11 | 2011-10-18 | Raytheon Company | Reactive shaped charge, reactive liner, and method for target penetration using a reactive shaped charge |
-
2008
- 2008-12-17 US US12/336,796 patent/US8037829B1/en not_active Expired - Fee Related
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CN106382864A (en) * | 2016-10-27 | 2017-02-08 | 北京航天长征飞行器研究所 | Shaped charge structure for active energy-containing composite shaped charge liner |
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Also Published As
Publication number | Publication date |
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US8037829B1 (en) | 2011-10-18 |
US20120024180A1 (en) | 2012-02-02 |
US8240251B2 (en) | 2012-08-14 |
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