Half pipe disrupter

Abstract

Provided herein are mass focusing shaped charges and related methods useful for disrupting targets in either underwater or on land. The mass focusing shaped charges comprise an explosives shell having an explosives shell surface, wherein at least a portion is curved and defines an inner volume configured to contain an inner volume of fluid or a metal liner. A distal body is comprising a SMART material is positioned between the inner volume of fluid and a to-be-disrupted target. A conformable layer of explosives conforms to at least a portion of a surface of the explosives shell, the conformable layer of explosives configured for explosive initiation by a detonator. Upon explosive initiation the inner volume of fluid or metal liner is forcefully ejected to form a fluid or metal jet in a direction through the distal body and toward the target.

1 .- 26 . (canceled) 
     
     
         27 . A mass focusing shaped charge for disrupting a target comprising:
 an explosives shell having:
 an explosives shell surface having an inside surface and an outside surface; 
 one or more symmetry planes; 
 an inner volume defined by the explosives shell inside surface configured to contain an inner volume of fluid; 
 a distal opening; 
   a distal body connected to the explosives shell distal opening to close the inner volume and contain the inner volume of fluid wherein the distal body is positioned between the inner volume of fluid and the target;   a SMART tamp comprising:
 a SMART tamp inside surface and a SMART tamp outside surface; 
 wherein the SMART tamp inside surface conforms to the outside surface of the explosives shell; 
   a conformable layer of explosives that conforms to at least a portion of the explosives shell surface, the conformable layer of explosives configured for explosive initiation by a detonator;   
       wherein upon explosive initiation the inner volume of fluid is configured to implode and form a fluid jet that is forced in a direction through the distal body toward the target. 
     
     
         28 . The mass focusing shaped charge of  claim 27 , further comprising a sealable container operably connected to the explosives shell, the sealable container having a surface shape that aligns with the conformable layer of explosives; wherein the sealable container is filled with the inner volume of fluid that is positioned in the explosives shell inner volume. 
     
     
         29 . The mass focusing shaped charge of  claim 28  wherein the sealable container distal surface is the distal body. 
     
     
         30 . The mass focusing shaped charge of  claim 27 , wherein the distal body comprises a SMART material. 
     
     
         31 . The mass focusing shaped charge of  claim 27 , wherein the explosives shell sectioned surface profile is defined by a geometric equation that is selected from the group consisting of:
 a semicircle;   a parabola;   two equal length line segments that connect with an angle at the connection point;   a line; and   any combination thereof.   
     
     
         32 . The mass focusing shaped charge of  claim 27  wherein the distal body is a SMART material and is selected from the group consisting of: rigid polyurethane, a vinyl closed cell foam, a polyvinylchloride foam, and a structural foam. 
     
     
         33 . The mass focusing shaped charge of  claim 27 , wherein the distal body is a SMART material and is formed into:
 a cuboid geometry; or   has a proximal surface with a profile corresponding to an arc, paraboloid, or pyramidal geometry.   
     
     
         34 . The mass focusing shaped charge of  claim 27 , wherein the SMART tamp is selected from the group consisting of: polyvinylchloride, plastic, synthetic rubber, and natural rubber. 
     
     
         35 . The mass focusing shaped charge of  claim 27 , wherein the explosives shell is formed of a structure that is flexible, curved, or bent to provide an adjustable curvature by a changeable radius of curvature. 
     
     
         36 . The mass focusing shaped charge of  claim 27 , wherein the distal body is a SMART material comprises a plurality of SMART layers, including a distal-most layer that is a jet clipper and at least one layer that is not a jet clipper. 
     
     
         37 . The mass focusing shaped charge of  claim 27 , further comprising a coupler connected to an outer surface of the explosives shell to connect to another mass focusing shaped charge in an end-to-end configuration. 
     
     
         38 . The mass focusing shaped charge of  claim 27 , further comprising a connector to connect the mass focusing shaped charge to the target, wherein the connector is selected from the group consisting of:
 a magnet;   an adhesive;   a flexible tripod;   a strap; and   any combination thereof.   
     
     
         39 . The mass focusing shaped charge of  claim 27 , further comprising a container having a container volume to contain the mass focusing shaped charge and a fluid body contained by the container surrounds the explosives shell, wherein the container has a seal to contain the fluid body in the container volume, wherein the seal is optionally a threadable lid or a snap-on lid. 
     
     
         40 . The mass focusing shaped charge of  claim 27 , further comprising a firing train comprising a single detonator operably connected to the conformable layer of explosives, wherein the firing train is configured to provide a single point or multi-point explosive initiation of the conformable layer of explosives comprising one or more sheet explosives strips. 
     
     
         41 . The mass focusing shaped charge of  claim 27 , further comprising:
 a firing train structure seated on top of the SMART tamp, wherein the firing train structure is operably connected to a sheet explosives that form the firing train;   the firing train structure, SMART tamp, and explosive shell have at least one coconcentric priming channel positioned therein;   the at least one coconcentric priming channel is filled with explosives to explosively connect the firing train to the conformable layer of explosives operably connected to the explosive shell inside surface, wherein the detonation of the firing train is propagated through the firing train structure, SMART tamp and explosive shell only at the location of the explosive filled priming channels to the conformable layer of explosives attached to the inner surface of the explosives shell.   
     
     
         42 . The mass focusing shaped charge of  claim 27 , wherein the target is a land-based target with air positioned between the mass focusing shaped charge and the target, wherein:
 the distal body is formed from a portion of a container that surrounds and contains the explosives shell and fluid body;   the SMART material is positioned on an outer facing surface of the container and between the explosives shell and the target.   
     
     
         43 . The mass focusing shaped charge of  claim 28 , wherein
 the explosives shell is formed of a structure selected from the group consisting of:   plastic, steel, copper, aluminum, and brass,   wherein the conformable layer of explosives comprises:   an outer explosives layer operably connected to the outer surface of the explosives shell; and an inner explosives layer operably connected to the inner surface of the explosives shell;   wherein the explosives shell and the conformable layer of explosives together form a composite structure to counteract an explosive ejection of the shell.   
     
     
         44 . A mass focusing shaped charge for disrupting a target comprising:
 an explosives shell formed of a structure comprising:   plastic, polyvinylchloride, steel, copper, aluminum, or brass having:
 an explosives shell surface having:
 an inside surface; and 
 an outside surface; 
 
 one or more symmetry planes; 
   a SMART tamp supported by the explosives shell;   an outside surface;   a conformable layer of explosives that conforms to at least a portion of the inside surface of the explosives shell,   the conformable layer of explosives configured for explosive initiation by a detonator;   a metal liner supported by the conformable layer of explosives and positioned so that the conformable layer of explosives is sandwiched between the metal liner and the explosives shell;   an inner volume defined by the explosives shell inside surface;   an optional SMART material distal body supported by the metal liner,   wherein the optional SMART material distal body occupies the inner volume of the explosives shell;   wherein upon explosive initiation the metal liner is crushed and plastically flows as a jet.   
     
     
         45 . The mass focusing shaped charge of  claim 44 , wherein the conformable layer of explosives comprises:
 an outer explosives layer operably connected to the outer surface of the explosives shell; and   an inner explosives layer operably connected to the inner surface of the explosives shell;   wherein the detonation of the explosives counteracts an explosive ejection of the shell.   
     
     
         46 . A mass focusing shaped charge for disrupting a target comprising:
 an explosives shell comprising:
 a SMART material: 
 an explosives shell surface having an inside surface and an outside surface; 
 one or more symmetry planes; 
 an inner volume defined by the explosives shell inside surface configured to contain an inner volume of fluid; 
 a distal opening; 
   a distal body connected to the explosives shell distal opening to close the inner volume and contain the inner volume of fluid, wherein the distal body is positioned between the inner volume and the target;   a conformable layer of explosives that conforms to at least a portion of the explosives shell surface, the conformable layer of explosives configured for explosive initiation by a detonator;   wherein upon explosive initiation the explosive shell SMART material is a tamp configured to amplify shockwaves and increase a duration of loading on the inner volume of fluid, the inner volume of fluid configured to implode and form a fluid jet that is forced in a direction through the distal body toward the target.