New experimental capabilities and theoretical insights of high pressure compression waves

COFFEE_KLATCH · Invited

Abstract

While some high pressure, compression wave research seeks ever high pressures($>$10~Mbar), the exciting developments of high pressure research for gas-gun generated compression waves have spawned novel compression experiments as well as new theoretical insights into compression wave dissipation. The first half of the discussion covers the unique gradient density impactor (GDI) developed at LLNL, that has just matured into a viable tool to examine the material response along and significantly away from the principal paths of the Hugoniot and isentrope. This gives direct access to hot planetary isentropes or cyclic paths to understand hysteretic response at moderately high pressures ($<$5~Mbar). Recently, significant material design challenges pertaining to material control, planarity, parallel layers, and reproducibility have been overcome in the manufacturing of these impactors used to create (within 2$\mu$s) compression waves. These compression waves consist of the standard monotonic compression and of unique non-monotonic compression waves, which widens the field of research to include previously inaccessible parts of the thermodynamic phase diagram for a given material. These developments will be addressed in conjunction with hydrodynamic simulations discussing several interesting experiments that have taken place in the pursuit of understanding the high-pressure phase diagram of water and of understanding high-pressure strength. Closely connected to these compression experiments, in general, is the interpretation of the recorded particle velocity histories and the assumptions used to quantify those results, e.g. stress versus density. Therefore, a second theoretical discussion of solitary wave structure is given suggested by recent experimental observations. Dissipative and dispersive effects are expected to exist in general, however, these effects are not usually discussed within the context of the Korteweg-de Vries(KdV)-Burgers equation, thus, leading to a possible quantification of these effects. Specifically, observed ramped-pressure drives generate coherent structures consistent with solitons in the weakly dissipative limit, that evolve into a dissipative, localising kink structures coalescing into larger kinks. A simulation based on experiment evolves via the KdV equation these structures between two Lagrangian points. The aim being to quantify the dissipation and dispersion that develops in high-pressure compression waves.

–

Authors

  • A. Rajendran

    DE Division, LANL, Chemistry Division, LANL, University of Cambridge, Sandia National Laboratories, Los Alamos National Laboratory, LLNL, UCSD, Institute of Fluid Physics, CAEP, Institute for High Energy Densities, JIHT RAS, Massachusetts Institute of Technology, Lawrence Livermore National Laboratory, DRDC Suffield, Lockheed Martin Corporation, Laboratoire de Combustion et de D\&#039;etonique (UPR du CNRS n9028), ENSMA, B.P. 40109, 86961 Futuroscope Cedex, France, Wash. State Univ., McGill University, Naval Surface Warfare Center, Dahlgren, Air Force Research Laboratory (AFRL/MNME), Harvard University, Fraunhofer, Ernst-Mach-Institut, Materials and Structures Laboratory, Tokyo Institute of Technology, CEA Valduc, LMPM, ENSMA Poitiers, France, LCD, ENSMA Poitiers, France, Applied Research Associates, Seismological Laboratory MS 252-21, California Institute of Technology, Pasadena, CA 91125, Department of Geological Sciences, Brown University, Providence, RI 02912-1846, Lawrence Livermore National Laboratory, University of California, Department of Aeronautics and Astronautics, Faculty of Engineering, Kyushu University, National Institute of Advanced Industrial Science and Technology, Energetic Materials Technology, NSWC Indian Head, AWE, UK, Los Alamos National Laboratory, Materials Science and Technology Division, Seoul National University, University of Duisburg-Essen, Germany, University of Lund, Sweden, University of Oxford, UK, AWE, Aldermaston, UK, LANL, IHED of JIHT RAS, Dorodnicyn Computing Center RAS, Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, Materials Science and Engineering, OSU, Columbus, OH, RFNC - VNIIEF, Sarov, Russia, School of Materials Engineering, Purdue University, West Lafayette, IN 47907, Applied Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545, Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, University of Manchester, AWE, Aldermaston, HCEI, Russian Federal Nuclear Center - VNIIEF, Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, P.O.Box 919-102, Mianyang 621900, P. R. China, College of Science, Wuhan University of Technology, Wuhan 430070, P. R. China, Cranfield University, UK, School of Earth and Space Sciences, University of Science and Technology of China, Institute for Theoretical and Experimental Physics, Institute of Problems of Chemical Physics RAS, Agency for Defense Development, P.O. Box 35-5, Yuseong, Daejeon, 305-600, Korea, CEA-DAM Ile de France, BP12, 91680 Bruyeres-le-Chatel, US Army Research Laboratory, IHDIV, Naval Surface Warfare Center, HP-CAT, Advanced Photon Source, Argonne National Laboratory, HiPSEC, University of Nevada, Las Vegas, Pyramid St, Livermore, CA, University of Illinois, Urbana-Champaign, PCS, Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK., Universitat Greifswald, Germany, Universitat zu Kiel, Germany, JIHT RAS, Moscow, Russia, Polytechnics of Turin, University of Cassino, Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China, Kumamoto University, RFNC-VNIIEF, Sarov, Russia, Lawrence Livermore National Lab, CEA-DIF BP 12 91680 Bruyeres le Chatel, Atomic Weapons Establishment, UK, ARL, Aberdeen, Tohoku University, CEA/DAM Valduc, France, CEA/DAM Ile de France, IMP, RAS, Russia, RIM, NNGU, Russia, RFNC-VNIITF, Russia, Los Alamos National Lab, California Institute of Technology, Ben-Gurion University, Isreal, National Defense Academy of Japan, Japan Synchrotron Radiation Research Institute / SPring-8, Graduate School of Engineering, Osaka University, Japan, Lawrence Livermore National Laboratory, University of California, P.O. Box 808, Livermore, CA 94550, Institute of Problems of Chemical Physics RAS, Chernogolovka, Russia, Prop. Div. Soreq NRC Yavne Israel, Electroptics Div. Soreq NRC Yavne Israel, Cavendish Laboratory, University of Cambridge, Marquette University, Wisconsin, USA, Dept. of Mechanical and Aerospace Engineering and Materials Science Program, University of California, San Diego, Dept. of Structural Engineering, University of California, San Diego, School of Materials Science and Engineering, Georgia Institute of Technology, Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, P. O. Box 919-102, China Academy of Engineering Physics, Mianya, AECL, CA, University of Cambridge, UK, Wilber Wright College, Shanghai Institute of Laser Plasma, Inst. Probl. Chem. Phys. RAS, Mechanics and Materials Science Research Center, Ningbo University, Ningbo 315211, P. R. China, RAFAEL, P.O. Box 2250, Haifa, Israel, University of Science and Technology of China, CEA Valduc, France, Defence Science \& Technology Laboratory, Institute of High Performance Computing, Singapore, Arizona State University, CEA Ile de France, France, LMT, ENS Cachan, France, CEA Le Ripault, France, Institute for Materials Research, Tohoku University, Kansei-Fukushi Laboratory, Tohoku Fukushi University, AFRL/MNME Eglin AFB, University of Florida, NAWC-China Lake, Naval Postgraduate School, MIT, Indian Head Division, NSWC, U.S. Army Research Office