High-speed, high-resolution observations of shaped-charge jets undergoing particulation

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Image-converter (IC) camera photography has provided spectacular images and quantitative records of liner collapse and early jet formation in shaped charges. We have extended the application of the IC camera to observations of shaped charge jet surfaces undergoing particulation. Sequential, high-resolution photographs were taken following the same 10-cm portion of jet at 2.5-{mu}s intervals. Simultaneous color rotating-mirror framing camera photographs and 450-keV flash x-ray radiographs were also taken of the same region. This combination provides a detailed record of the evolution of surface structure during jet necking and particulation. In the high-resolution photographs, individual features on the jet surfaces as ... continued below

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10 p.

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Winer, K.; Breithaupt, D.; Shaw, L.; Muelder, S. & Baum, D. February 28, 1995.

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Description

Image-converter (IC) camera photography has provided spectacular images and quantitative records of liner collapse and early jet formation in shaped charges. We have extended the application of the IC camera to observations of shaped charge jet surfaces undergoing particulation. Sequential, high-resolution photographs were taken following the same 10-cm portion of jet at 2.5-{mu}s intervals. Simultaneous color rotating-mirror framing camera photographs and 450-keV flash x-ray radiographs were also taken of the same region. This combination provides a detailed record of the evolution of surface structure during jet necking and particulation. In the high-resolution photographs, individual features on the jet surfaces as small as {approximately}100 {mu}m can easily be detected and followed as they evolve over time. The jet surface structure is rough with overlapping slip dislocation lines running along the surface at 45{degree} to either side of the jet axis. This is similar to the texture that develops in long rods undergoing static tension. We discuss the implications of these images for increasing jet particulation times.

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10 p.

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OSTI as DE95009564

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  • 15. international symposium on ballistics, Haifa (Israel), 21-24 May 1995

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  • Other: DE95009564
  • Report No.: UCRL-JC--118383
  • Report No.: CONF-950537--3
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 39745
  • Archival Resource Key: ark:/67531/metadc681959

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  • February 28, 1995

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  • July 25, 2015, 2:20 a.m.

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  • June 23, 2016, 10:05 a.m.

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Winer, K.; Breithaupt, D.; Shaw, L.; Muelder, S. & Baum, D. High-speed, high-resolution observations of shaped-charge jets undergoing particulation, article, February 28, 1995; California. (digital.library.unt.edu/ark:/67531/metadc681959/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.