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    Deformation and spallation of shocked Cu bicrystals with Σ3 coherent and symmetric incoherent twin boundaries 

    Han, Weizhong; An, Qi; Luo, S. N.; Germann, Timothy C.; Tonks, D. L.; Goddard III, William A. (American Physical Society, 2012)
    We perform molecular dynamics simulations of Cu bicrystals with two important grain boundaries (GBs), 3 coherent twin boundaries (CTB), and symmetric incoherent twin boundaries (SITB) under planar shock wave loading. It ...
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    Left-right loading dependence of shock response of (111)//(112) Cu bicrystals: Deformation and spallation 

    An, Qi; Han, Weizhong; Luo, S. N.; Germann, Timothy C.; Tonks, D. L.; Goddard III, William A. (AIP Publishing, 2012)
    We investigate with molecular dynamics the dynamic response of Cu bicrystals with a special asymmetric grain boundary (GB), (111)//(112)〈110〉, and its dependence on the loading directions. Shock loading is applied along ...
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    Shock compression and spallation of single crystal tantalum 

    An, Qi; Ravelo, Ramon; Germann, Timothy C.; Han, Weizhong; Luo, Sheng-Nian; Tonks, D. L.; Goddard III, William A. (AIP Publishing, 2012)
    We present molecular dynamics simulations of shock-induced plasticity and spall damage in single crystal Ta described by a recently developed embedded-atom-method (EAM) potential and a volumedependent qEAM potential. We ...
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    Shock-induced consolidation and spallation of Cu nanopowders 

    Huang, Li; Han, Weizhong; An, Qi; Goddard III, William A.; Luo, S. N. (AIP Publishing, 2012)
    A useful synthesis technique, shock synthesis of bulk nanomaterials from nanopowders, is explored here with molecular dynamics simulations. We choose nanoporous Cu (∼11 nm in grain size and 6% porosity) as a representative ...