Non-focusing active warhead

• US 5,852,256 A
• Filed: 03/16/1979
• Issued: 12/22/1998
• Est. Priority Date: 03/16/1979
• Status: Expired due to Term

• Current Assignee: United States Of America As Represented By The Secretary Of The Air Force
• Original Assignee: United States Of America As Represented By The Secretary Of The Air Force
• Inventors: Hornig, Howard C.
• Primary Examiner(s): Nelson, Peter A.
• Application Number:
  US06/024,641
• Time in Patent Office: 7,221 Days
• Field of Search: 102/6, 102/60, 102/66, 102/87, 102/90, 102/334, 102/364, 102/473, 102/491, 102/493
• US Class Current: 102/473
• CPC Class Codes: F42B 12/204 for attacking structures, e.g. specific buildings or fortifications, ships or vehicles
• CPC Class Codes: F42B 12/76 of the casing

Abstract

A non-nuclear, non-focusing, active warhead that comprises a high explosive charge contained within a casing of reactive metal. When the high explosive is detonated, the reactive metal is dispersed and reacts with the air, which significantly increases the explosive yield of the warhead. The active warhead produces therefore much higher blast effects with significantly reduced weight compared to conventional munitions. The warhead is highly effective against such targets as aircraft which typically have thin fuselages, for example. The explosiveness of this warhead can be enhanced further by elevating the temperature and therefore the reactivity of the reactive metal before or during the explosion. New methods of enhancing the reactivity of the metal are also taught.

Claims

1. A non-nuclear, non-focused blast explosive device comprising a central charge of high explosive enclosed in a continuously convex casing made of material which exhibits substantial reactivity with respect to a component of the environment in which said blast explosive is to be detonated, wherein said casing is made of a continuous metallic body of aluminum, magnesium, titanium, zirconium, or cerium.

2. A non-nuclear, non-focused blast explosive device comprising a central charge of high explosive enclosed in a continuously convex casing made of material which exhibits substantial reactivity with respect to a component of the environment in which said blast explosive is to be detonated, wherein said casing material is selected from the group of powdered metals consisting of aluminum, magnesium, titanium, lithium hydride, zirconium, and cerium dispersed in a polymeric binder matrix.

8. The explosive device, as set forth in claim 2, further defined in that said polymeric binder is porous.

3. A non-nuclear, non-focused blast explosive device comprising a central charge of high explosive enclosed in a continuously convex casing made of material which exhibits substantial reactivity with respect to a component of the environment in which said blast explosive is to be detonated, wherein said reactive material comprises a reactive metal, and said reactive metal casing is made of aluminum, and of a copolymer of vinylidene fluoride and hexafluoropropylene having a composition of C₅ H₃.5 F₆.5.

4. A non-nuclear, non-focused blast explosive device comprising a central charge of high explosive enclosed in a continuously convex casing made of material which exhibits substantial reactivity with respect to a component of the environment in which said blast explosive is to be detonated, wherein:

a. said reactive material is a reactive metal selected from the group consisting of Group 1A, 2A, 3A, 3B metals, including the lanthanides and actinides, Group 4B metals and intermetallic alloys and compounds thereof, wherein said intermettalic compounds are selected from the group consisting of hydrides, silicides, phosphides, and carbides thereof; and

b. said reactive metal is disposed in a copolymer of vinylidene fluoride and hexafluoropropylene having a composition of C₅ H₃.5 F₆.5.

5. A non-nuclear, non-focused blast explosive device comprising a central charge of high explosive enclosed in a continuously convex casing made of material which exhibits substantial reactivity with respect to a component of the environment in which said blast explosive is to be detonated, wherein said reactive material comprises a reactive metal, and said reactive metal casing is made of aluminum, magnesium, and of a copolymer of vinylidene fluoride and hexafluoropylene having a composition of C₅ H₃.5 F₆.5.

6. A non-nuclear, non-focused blast explosive device comprising a central charge of high explosive enclosed in a continuously convex casing made of material which exhibits substantial reactivity with respect to a component of the environment in which said blast explosive is to be detonated, wherein said blast explosive device is at least enclosed in an outer metal jacket for improved hard-structure penetration.

7. A non-nuclear, non-focused blast explosive device comprising a central charge of high explosive enclosed in a continuously convex casing made of material which exhibits substantial reactivity with respect to a component of the environment in which said blast explosive is to be detonated, wherein said reactive material comprises a reactive metal, and wherein said central charge of high explosive comprises means for heating said reactive metal to elevate its temperature prior to its reaction with said component of said environment.

9. The explosive of claim 7, further defined in that said means for heating said reactive metal is a chemical oxidizer disposed proximate to said reactive metal.

10. The explosive of claim 7, further defined in that said means for heating said reactive metal is a mixture of an oxidizer and a powdered fuel, disposed in heat conductive relation to said reactive metal, and means for initiating the reaction between said oxidizer and powdered fuel.

11. The explosive of claim 10, further defined in that means for heating said reactive metal comprises a mixture of reactants capable of forming a shock-sensitive intermediate proximate to said reactive metal.

12. The explosive of claim 7, further defined in that casing comprising said reactive metal has a porous structure in heat-conductive relation to said reactive metal, said porous structure being capable of being heated in response to a shock wave permeating said casing.