Surface Preparation Methods to Enhance Dynamic Surface Property Measurements of Shocked Metal Surfaces

ORAL

Abstract

This effort investigates surface-preparation methods to enhance dynamic surface-property measurements of shocked metal surfaces. To assess the ability of making reliable and consistent dynamic surface-property measurements, the amount of material ejected from the free-surface upon shock release to vacuum (ejecta) was monitored for shocked Al-1100 and Sn targets. Four surface preparation methods were considered: fly-cut machined finish, diamond-turned machine finish, polished finish, and ball-rolled. The samples were shock loaded by in-contact detonation of HE PBX-9501 on the front-side of the metal coupons. Ejecta production at the back-side or free-side of the metal coupons was monitored using piezoelectric pins, optical shadowgraphy, and x-ray attenuation radiography.

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Authors

  • Michael Zellner

    • Los Alamos National Laboratory
    • Los Alamos National Lab

  • Wendy McNeil

    • Los Alamos National Laboratory

  • George Gray III

    • Los Alamos National Laboratory

  • David Huerta

    • Los Alamos National Laboratory

  • Nicholas King

    • Los Alamos National Laboratory

  • George Neal

    • Los Alamos National Laboratory

  • Jeremy Payton

    • Los Alamos National Laboratory

  • Jim Rubin

    • Los Alamos National Laboratory

  • Gerald Stevens

    • National Security Technologies

  • William Turley

    • National Security Technologies

  • William Buttler

    • Los Alamos National Laboratory
    • Los Alamos National Lab