On the Initiation of High Explosives by Laser Radiation

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Description

The problem of laser initiation of high explosives in munitions is considered. In this situation, the laser illuminates a small spot on the casing, and lateral thermal transport affects the initiation temperature. We use a variational method to calculate the critical temperature for explosive initiation as a function the laser spot size, for common high explosives. The effect of the dwelling time of the irradiation is then evaluated. We demonstrate that in typical situations the critical temperature is determined by the dwelling time rather than by the laser spot size.

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12 p. (0.2 MB)

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Rubenchik, A M March 28, 2006.

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Description

The problem of laser initiation of high explosives in munitions is considered. In this situation, the laser illuminates a small spot on the casing, and lateral thermal transport affects the initiation temperature. We use a variational method to calculate the critical temperature for explosive initiation as a function the laser spot size, for common high explosives. The effect of the dwelling time of the irradiation is then evaluated. We demonstrate that in typical situations the critical temperature is determined by the dwelling time rather than by the laser spot size.

Physical Description

12 p. (0.2 MB)

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PDF-file: 12 pages; size: 0.2 Mbytes

Source

  • Journal Name: Propellants, Explosive, Pyrotechnices, vol. 32, no. 4, August 15, 2007, pp. 296; Journal Volume: 32; Journal Issue: 4

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  • Report No.: UCRL-JRNL-220214
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 936472
  • Archival Resource Key: ark:/67531/metadc893495

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  • March 28, 2006

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • April 13, 2017, 4 p.m.

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Rubenchik, A M. On the Initiation of High Explosives by Laser Radiation, article, March 28, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc893495/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.