Shock hugoniot behavior of mixed phases with widely varying shock imepdances

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The shock velocity dependence on shock pressure in composite explosive materials containing polymeric binders is known to exhibit marked non-linear behavior in the U{sub s} - u{sub p} plane at low pressures. This is in addition to the non-linear behavior noted in pure polymeric materials. The precise description of this behavior is important in analyzing the response of energetic materials to impact shocks. We will show that the mismatch of the shock impedances in materials such as rocket propellants composed of polymer binder, aluminum, and ammonium Perchlorate can be expected to exhibit a very large initial slope of the shock ... continued below

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7 p.

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Reaugh, J.E. & Lee, E.L. July 1, 1997.

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Description

The shock velocity dependence on shock pressure in composite explosive materials containing polymeric binders is known to exhibit marked non-linear behavior in the U{sub s} - u{sub p} plane at low pressures. This is in addition to the non-linear behavior noted in pure polymeric materials. The precise description of this behavior is important in analyzing the response of energetic materials to impact shocks. We will show that the mismatch of the shock impedances in materials such as rocket propellants composed of polymer binder, aluminum, and ammonium Perchlorate can be expected to exhibit a very large initial slope of the shock velocity, U{sub s}, dependence on the particle velocity, u{sub p}. This slope is simply a result of the equilibration of Hugoniot pressure amongst the phases. With accurate descriptions for the equations of state of the individual components, we successfully predict the extreme slope at low compression. The effect is primarily due to the very large change in compressibility of the polymeric phase at relatively low volumetric compression of the whole mixture. Examples are shown and compared with available experimental results.

Physical Description

7 p.

Notes

OSTI as DE98051493

Other: FDE: PDF; PL:

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  • Meeting of the topical group on shock compression of condensed matter of the American Physical Society, Amherst, MA (United States), 27 Jul - 1 Aug 1997

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  • Other: DE98051493
  • Report No.: UCRL-JC--126586
  • Report No.: CONF-970707--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 633089
  • Archival Resource Key: ark:/67531/metadc693584

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  • July 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 6, 2017, 6:03 p.m.

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Reaugh, J.E. & Lee, E.L. Shock hugoniot behavior of mixed phases with widely varying shock imepdances, article, July 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc693584/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.