Architected materials and structures to control shock output characteristics

Patent metadata

Field	Value
Publication number	US-10036616-B2
Application number	US-201615050974-A
Country	US
Kind code	B2
Filing date	Feb 23, 2016
Priority date	Feb 23, 2016
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

A system that provides control of the output shockwave properties of energetic material wherein the system includes an energetic material having a first portion and a second portion. An additive manufacturing system combines the first portion and the second portion of the energetic material wherein the first portion and the second portion are positioned relative to each other to provide control of the output shockwave properties of the energetic material.

First claim

The invention claimed is:

1. A method of producing an energetic device that includes control of output shockwave properties, comprising the steps of:
providing an energetic material unit having at least a first portion of first energetic material and a second portion of second energetic material,
using an additive manufacturing system having a print head and a build platform for producing said first portion of first energetic material by moving said print head and extruding said first energetic material onto said build platform,
using said additive manufacturing system having a print head and a build platform for producing said second portion of said energetic material by moving said print head and extruding said second energetic material onto said build platform, and
by locating said first portion of first energetic material and said second portion of second energetic material relative to each other such that no voids exist therebetween creating said energetic material unit to provide the energetic device that includes control of output shockwave properties.

2. The method of producing an energetic device of claim 1 wherein said energetic material has a cylindrical shape further comprising
a second print head in said additive manufacturing system
wherein said step of using said additive manufacturing system for producing said second portion of said energetic material by moving said print head and extruding said second energetic material onto said build platform comprises moving said second print head and extruding said second energetic material onto said build platform.

3. The method of producing an energetic device of claim 1
wherein said energetic material unit is an explosive material unit and
wherein said first portion has a first detonation velocity and
wherein second portion has a second detonation velocity and
wherein said first detonation velocity is faster than said second detonation velocity, and
wherein said first detonation velocity is related to said second detonation velocity in a manner to control of the output shockwave properties of said explosive.

4. A method of producing a device that includes control of the output shockwave properties of explosive material, comprising the steps of:
providing a first explosive material,
providing a second explosive material,

using an additive manufacturing system having a print head and a build platform for producing a first unit containing said first explosive material by moving said print head and extruding said second explosive material onto said build platform, using said additive manufacturing system having a print head and a build platform for producing a second unit containing said second explosive material by moving said print head and extruding said second explosive material onto said build platform, and
using said additive manufacturing system having a print head and a build platform for positioning said first explosive material and said second explosive material relative to each other such that no voids exist therebetween to provide the device that includes control of the output shockwave properties of explosive material.

5. The method of producing a device that includes control of the output shockwave properties of explosive material of claim 4
wherein said first explosive has a first detonation velocity and
wherein second explosive has a second detonation velocity and
wherein said first detonation velocity is faster than said second detonation velocity.

6. The method of producing a device that includes control of the output shockwave properties of explosive material of claim 4
wherein said first explosive has a first detonation velocity and
wherein second explosive has a second detonation velocity and
wherein said first detonation velocity is faster than said second detonation velocity and
wherein said first detonation velocity is related to said second detonation velocity in a manner to control the output shockwave properties of explosive material.

7. The method of producing a device that includes control of the output shockwave properties of explosive material of claim 4
further comprising
a second print head in said additive manufacturing system
wherein said step of using said additive manufacturing system for producing said second explosive material comprises moving said second print head and extruding said second explosive material onto said build platform.

8. The method of producing a device that includes control of the output shockwave properties of explosive material of claim 4
wherein said first explosive has an outer sheath of said first explosive having a first detonation velocity and
wherein second explosive includes a central cone of explosive with a second detonation velocity and
wherein said first detonation velocity is faster than said second detonation velocity and
wherein said first detonation velocity is related to said second detonation velocity in a manner to control the output shockwave properties of explosive material.

9. An apparatus that includes control of the output shockwave properties, comprising:
an energetic material unit having at least a first portion of first energetic material and a second portion of second energetic material,
an additive manufacturing system having a print head and a build platform
for producing said first portion of first energetic material by moving said print head and extruding said first energetic material onto said build platform, and
for producing said second portion of second energetic material by moving said print head and extruding said second energetic material onto said build platform,
wherein said first portion of first energetic material and said second portion of second energetic material are positioned relative to each other such that no voids exist therebetween to provide the apparatus that includes control of the output shockwave properties of said energetic material unit.

10. The apparatus that includes control of the output shockwave properties of claim 9 further comprising
a second print head in said additive manufacturing system
wherein said additive manufacturing system for producing said second portion of second energetic material moves said second print head and extrudes said second energetic material onto said build platform.

11. The apparatus that includes control of the output shockwave properties of claim 9
wherein said energetic material is an explosive and
wherein said first portion has a first detonation velocity and
wherein second portion has a second detonation velocity and
wherein said first detonation velocity is faster than said second detonation velocity, and
wherein said first detonation velocity is related to said second detonation velocity in a manner to control of the output shockwave properties of said explosive.

12. An apparatus that includes control of the output shockwave properties of explosive material, comprising:
a first explosive material,
a second explosive material, and
an additive manufacturing system including
a print head and
a build platform
for combining said first explosive material and said second explosive material using said print head
by moving said print head and extruding said first explosive material onto said build platform, and
moving said print head and extruding said second explosive material onto said build platform,
wherein said first explosive material and said second explosive material are positioned relative to each other such that no voids exist therebetween to provide control of the output shockwave properties of the device.

13. The apparatus that includes control of the outp

Assignees

• L Livermore Nat Security Llc

Inventors

• Gash Alexander E
• Duoss Eric B
• Kuntz Joshua D
• Sullivan Kyle T
• Vericella John
• White Bradley W

Classifications

• F42B1/02 Primary

  Shaped or hollow charges (blasting cartridges with cavities in the charge F42B3/08; oil winning using shaped-charge perforators E21B43/116) · CPC title

• F42B1/036 Primary

  Manufacturing processes therefor {(F42B33/0214 - F42B33/0292 take precedence)} · CPC title