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Acceleration of Flat Plates by Multiple Staging

  • G. R. Fowles
  • C. Leung
  • R. Rabie
  • J. Shaner

Abstract

Pressures attainable in conventional shock wave equation of state experiments are limited by the velocities to which flat plates can be accelerated without severely altering their geometry or thermodynamic state. At present two-stage gas guns provide the highest useful velocities. These can achieve approximately 8 km/s with a projectile diameter of 1.5 cm; impact of tantalum on tantalum. at this velocity yields a pressure of about 5 Mbar. These conditions thus represent the current upper limit for shock wave equation of state work in the U.S. (except in underground nuclear explosions). Russian experimenters have reported measurements with impact velocities of 14 km/s, but the technique has never been described in the open literature [1].

Keywords

Impact Velocity Spall Strength Impedance Ratio Flyer Plate Underground Nuclear Explosion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    L. V. Al’Tshuler, Soviet Phys., Uspekhi 8, 52 (1965).CrossRefGoogle Scholar
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    A. S. Balchan and G. R. Cowan, Rev. Sci. Instr. 35, 937 (1964).CrossRefGoogle Scholar
  3. 3.
    R. W. White, Ph.D. Thesis, Washington State University, Pullman, Washington (1970).Google Scholar
  4. 4.
    G. R. Fowles, R. Rabie, and C. Leung, unpublished data.Google Scholar
  5. 5.
    W. Isbell, private communication.Google Scholar
  6. 6.
    V. I. Laptev and Yu. A. Trishin, Soviet Phys., J. Mechs. and Tech. 6, 128 (1974).Google Scholar

Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • G. R. Fowles
    • 1
  • C. Leung
    • 1
  • R. Rabie
    • 1
  • J. Shaner
    • 2
  1. 1.Washington State UniversityPullmanUSA
  2. 2.Lawrence Livermore LaboratoryUniversity of CaliforniaLivermoreUSA

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