High-Pressure Dynamic Strength Measurements and Continuum Modeling of Granular Boron Carbide via the Tamped Richtmyer-Meshkov Instability Method

ORAL

Abstract

The high-pressure dynamic strength of granular B4C (ρ00=0.85 g/cm3, 33% TMD) is determined through coupled experiments and numerical simulations. Plate impact experiments are performed at the Advanced Photon Source’s Dynamic Compression Sector using the tamped Richtmyer-Meshkov instability configuration, in which a planar shock wave is driven through a corrugated Cu driver-B4C tamper interface forcing the corrugation to invert and penetrate the shock compressed B4C tamper. Depth of inversion (jet length), corrugation contour, and shock wave propagation are measured using multiframe X-ray phase contrast imaging. Numerical simulations are performed using the Eulerian hydrocode CTH and calibrated against these experimentally measured values. B4C bulk yield strength, Y, as a function of shock pressure, P, is determined for each impact experiment. The assembly of these P-Y data points illustrate the pressure-dependent yield surface of granular B4C.

SAND2022-2532 A

*Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.

–

Presenters

  • Travis J Voorhees

    • Sandia National Laboratories

Authors

  • Travis J Voorhees

    • Sandia National Laboratories

  • Brittany Branch

    • Sandia National Laboratories

  • Anirban Mandal

    • Los Alamos National Laboratory

  • Matthew C Hudspeth

    • Los Alamos National Laboratory

  • Seth Root

    • Sandia National Laboratories

  • Tracy J Vogler

    • Sandia National Laboratories