Global to push GA events into
skip to main content

Title: Free form hemispherical shaped charge

A hemispherical shaped charge has been modified such that one side of the hemisphere is spherical and the other is aspherical allowing a wall thickness variation in the liner. A further modification is to use an elongated hemispherical shape. The liner has a thick wall at its pole and a thin wall at the equator with a continually decreasing wall thickness from the pole to the equator. The ratio of the wall thickness from the pole to the equator varies depending on liner material and HE shape. Hemispherical shaped charges have previously been limited to spherical shapes with no variations in wall thicknesses. By redesign of the basic liner thicknesses, the jet properties of coherence, stability, and mass distribution have been significantly improved.
  1. (Livermore, CA)
Issue Date:
OSTI Identifier:
United States of America as represented by United States (Washington, DC) LLNL
Patent Number(s):
US 5522319
Contract Number:
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
free; form; hemispherical; shaped; charge; modified; hemisphere; spherical; aspherical; allowing; wall; thickness; variation; liner; modification; elongated; shape; thick; pole; equator; continually; decreasing; ratio; varies; depending; material; charges; previously; limited; shapes; variations; thicknesses; redesign; basic; jet; properties; coherence; stability; mass; distribution; significantly; improved; significantly improved; spherical shape; wall thickness; shaped charge; shaped charges; liner material; hemispherical shaped; thickness variation; significantly improve; thick wall; spherical shaped; mass distribution; /102/175/