Ultrafast Shocked Single Crystal PETN and Beta-HMX: Shock Hugoniot Measurements to Guide the Development of Continuum Models

ORAL

Abstract

We report results from ultrafast shockwave experiments conducted on single crystal high explosives. Ultrafast shock studies can enable high throughput characterizations of unreacted equations of state to higher pressures than previously reported and also quantify the magnitude of anisotropic mechanical response to shock waves. Our previous results derived from a 372 ps drive duration yielded anisotropic elastic wave response in single crystal beta-HMX ((110) and (010) impact planes). Here we provide results using a \textgreater 2x drive duration to extend measurements into the plastic or bulk wave regime. We compare our ultrafast time domain interferometry (TDI) results with previous gun platform results. These 10 ps time scale resolution TDI measurements guide the development of a continuum model to study pore collapse and energy localization in shock-compressed crystals of beta-HMX.

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Authors

  • Joseph Zaug

    Lawrence Livermore National Labatory, Lawrence Livermore National Laboratory, Lawrence Livermore National Laboratory, Material Science Division, Lawrence Livermore Natl Lab

  • Michael Armstrong

    Lawrence Livermore National Labatory, Lawrence Livermore National Laboratory, Lawrence Livermore National Laboratory, Material Science Division, Lawrence Livermore Natl Lab

  • Jonathan Crowhurst

    Lawrence Livermore National Labatory, Lawrence Livermore National Laboratory, Lawrence Livermore National Laboratory, Material Science Division, Lawrence Livermore Natl Lab

  • Louis Ferranti

    Lawrence Livermore National Labatory

  • Ryan Austin

    Lawrence Livermore National Labatory

  • Laurence Fried

    Lawrence Livermore National Laboratory, Lawrence Livermore National Labatory