Controlled Fragmentation. 31. The Development of Rubber Liners for the Grooved-Charge Method of Controlling Fragmentation
Abstract
Earlier work on the development and application of the grooved-charge method of obtaining controlled fragmentation has been confined to casings with cylindrical cavities into which pre-cast charges, or fluted liners, can be easily inserted. Difficulty is experienced when the cavity is not cylindrical and when it is bulbous with a narrow neck, for it is then necessary to have a flexible liner which, shaped to the cavity, can be collapsed during insertion and is elastic enough to recover its shape. A method of fabricating fluted rubber liners which meet this requirement has been developed. A metal former carrying the chosen fluted pattern and shaped to the cavity of the casing is sprayed with rubber latex under specified conditions. The liner, in the form of a bag, is peeled off the former and inserted into the casing. The process of filling with molten explosive helps in achieving a good fit of the liner to the cavity. Fragmentation results with cylindrical and barrel-shaped casings are described.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1952
- Accession Number
- ADA492389
Entities
People
- J. W. Gibson
- W. C. Shepherd