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Title: Tunable cylindrical shaped charge

Abstract

A shaped charge produces an explosive jet utilizing a cylindrical liner surrounded by tracks of explosives. The tracks of explosives are located on the curved surface of the cylindrical liner in a spiral. The tracks of explosives are wrapped around the cylindrical liner in a spiral at an angle to the charge axis. The angle is determined as an angle that assures that the flow speed of the collapsing cylindrical liner is subsonic compared to the sound speed in the material of the collapsing cylindrical liner. The angle also can be selected and varied to directly control the speed of a non-stretching jet, as well as a velocity gradient to produce a stretching jet.

Inventors:
;
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568519
Patent Number(s):
10330445
Application Number:
15/882,099
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F42 - AMMUNITION F42B - EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/29/2018
Country of Publication:
United States
Language:
English

Citation Formats

Baum, Dennis Willard, and Georgevich, Vladimir. Tunable cylindrical shaped charge. United States: N. p., 2019. Web.
Baum, Dennis Willard, & Georgevich, Vladimir. Tunable cylindrical shaped charge. United States.
Baum, Dennis Willard, and Georgevich, Vladimir. Tue . "Tunable cylindrical shaped charge". United States. https://www.osti.gov/servlets/purl/1568519.
@article{osti_1568519,
title = {Tunable cylindrical shaped charge},
author = {Baum, Dennis Willard and Georgevich, Vladimir},
abstractNote = {A shaped charge produces an explosive jet utilizing a cylindrical liner surrounded by tracks of explosives. The tracks of explosives are located on the curved surface of the cylindrical liner in a spiral. The tracks of explosives are wrapped around the cylindrical liner in a spiral at an angle to the charge axis. The angle is determined as an angle that assures that the flow speed of the collapsing cylindrical liner is subsonic compared to the sound speed in the material of the collapsing cylindrical liner. The angle also can be selected and varied to directly control the speed of a non-stretching jet, as well as a velocity gradient to produce a stretching jet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {6}
}

Works referenced in this record:

Shaped Charge with Cylindrical Liner
patent, July 1961


Hollow-Explosive Charge Construction
patent, May 1973


Shaped charge device
patent, February 1980


Devices and methods for perforating a wellbore
patent, June 2013


Multiple explosively formed projectiles liner fabricated by additive manufacturing
patent, June 2018


Architected materials and structures to control shock output characteristics
patent, July 2018