Effect of interior surface finish on the break-up of commercial shaped charge liners

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A series of experiments aimed at understanding the influence of the liner interior surface finish on the break-up of shaped charge jets has been completed. The experiments used a standard 81-mm shaped charge design, loaded with LX-14 high explosive; incorporating high-precision copper shaped charged liners. The results indicate that a significant reduction of jet break-up time occurs between a surface finish of 99.30 microinches and 375.65 microinches. Surface finishes of 4.78, 44.54 and 99.30 microinches produced significantly better ductility and associated break-up times than the 375.65-microinch finish. The baseline production process high-precision liners were measured to have an average surface ... continued below

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1.2 Megabytes pages

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Baker, E L & Schwartz, A J August 11, 1999.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 46 times . More information about this article can be viewed below.

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Description

A series of experiments aimed at understanding the influence of the liner interior surface finish on the break-up of shaped charge jets has been completed. The experiments used a standard 81-mm shaped charge design, loaded with LX-14 high explosive; incorporating high-precision copper shaped charged liners. The results indicate that a significant reduction of jet break-up time occurs between a surface finish of 99.30 microinches and 375.65 microinches. Surface finishes of 4.78, 44.54 and 99.30 microinches produced significantly better ductility and associated break-up times than the 375.65-microinch finish. The baseline production process high-precision liners were measured to have an average surface finish of 44.54 microinches. The results show that for the shaped charge warhead geometry and explosive combination investigated, some care must be taken in respect to surface finish, but that very fine surface finishes do not significantly improve the jet ductility and associated break-up times.

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1.2 Megabytes pages

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  • 18th International Symposium on Ballistics, San Antonio, TX (US), 11/15/1999--11/19/1999

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  • Report No.: UCRL-JC-135302
  • Report No.: DP0102052
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 14558
  • Archival Resource Key: ark:/67531/metadc619039

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  • August 11, 1999

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  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 1:14 p.m.

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Baker, E L & Schwartz, A J. Effect of interior surface finish on the break-up of commercial shaped charge liners, article, August 11, 1999; California. (digital.library.unt.edu/ark:/67531/metadc619039/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.