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Volume 2, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 999 - 1006
Section Micro-Structural Effects
DOI 10.1051/dymat/2009140
Published online 15 September 2009

DYMAT 2009 (2009) 999-1006
DOI: 10.1051/dymat/2009140

Laser compression and fragmentation of metals

M.A. Meyers1, H. Jarmakani1, B.Y. Cao1, C.T. Wei1, B. Kad1, B.A. Remington2, E.M. Bringa2, B. Maddox2, D. Kalantar2, D. Eder2 and A. Koniges2

1  U. of California, San Diego, la Jolla, CA, USA
2  Lawrence Livermore National Laboratory, Livermore, CA, USA


Published online: 15 September 2009

Abstract
Using the Janus LLNL and Omega facilities, we are using laser energy to generate shock and quasi-isentropic compression of monocrystalline, polycrystalline, and nanocrystalline FCC and BCC metallic specimens(Cu, Ni, V). We have investigated the internal defects generated by experimental and computational (MD) means. By comparing experimentally observed and computationally predicted structures we can obtain new insights into the fundamental deformation mechanisms. We have also investigated the mechanisms of spall initiation, propagation, and fragmentation.



© EDP Sciences 2009


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