In Situ Investigation of Mesoscale Mechanics of Energetic Materials Using X-ray Diffraction.

ORAL

Abstract

Weak impacts on high explosives (HE) can give rise to either violent reactions or harmless fracture and material dispersal. Predicting this response or the state of damage in the material remains an unsolved technical challenge. \textit{In situ} mesoscale insights to anisotropic dislocation-mediated plasticity, phase transitions, and damage are needed to quantify fundamental structure-property relationships, inform theory, and enable high fidelity simulations. Time-resolved, \textit{in situ} X-ray diffraction during dynamic loading, spanning multiple orders of strain rate, using synchrotron (Advanced Photon Source) and X-ray free electron laser (Linac Coherent Light Source) radiation has been performed for single crystal and plastic bonded formulations of cyclotrimethylene trinitramine (RDX). For the first time, diffraction patterns quantify the average lattice response during elastic-plastic and phase transition and allow for direct comparison of experiments and simulations through measured and computed diagnostics.

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Authors

  • Kyle Ramos

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory
    • LANL

  • Francis Addessio

    • Los Alamos National Laboratory

  • Claudine Armenta

    • Los Alamos National Laboratory

  • John Barber

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory

  • Cynthia Bolme

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory
    • LANL

  • Marc Cawkwell

    • Los Alamos National Laboratory

  • Arianna Gleason

    • Los Alamos National Laboratory
    • Stanford University
    • Los Alamos National Laboratory/SLAC
    • LANL/SLAC
    • Los Alamos National Laboratory/Stanford University

  • Adam Golder

    • Los Alamos National Laboratory

  • Ernest Hartline

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory

  • Brian Jensen

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab, M-9 Shock and Detonation Phsyics Group
    • Los Alamos National Lab

  • Darby J. Luscher

    • Los Alamos National Laboratory

  • Timothy Pierce

    • Los Alamos National Laboratory

  • Richard Sandberg

    • Los Alamos National Laboratory

  • G. Kenneth Windler

    • Los Alamos National Laboratory

  • Christopher Meredith

    • Army Research Laboratory
    • US Army Rsch Lab - Aberdeen

  • Leora Cooper

    • MIT
    • Massachusetts Institute of Technology

  • Nicholas Sinclair

    • Washington State University
    • Dynamic Compression Sector

  • Paulo Rigg

    • Washington State University
    • Dynamic Compression Sector

  • Hae Ja Lee

    • SLAC National Accelerator Laboratory
    • Matter in Extreme Conditions Instrument
    • SLAC
    • Stanford Linear Accelerator

  • Inhyuk Nam

    • Matter in Extreme Conditions Instrument

  • Matt Seaburg

    • Matter in Extreme Conditions Instrument