Size and Geometry Effects on Flow Stress in Bioinspired de novo Metal-matrix Nanocomposites

Authors

  • Dipanjan Sen,

    1. Department of Materials Science and Engineering, Massachusetts Institute of Technology 77 Mass. Ave., Cambridge, MA 02139, USA
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  • Markus J. Buehler

    Corresponding author
    1. Laboratory for Atomistic and Molecular Mechanics, Department of Civil and Environmental Engineering, Center for Materials Science and Engineering, Center for Computational Engineering, Massachusetts Institute of Technology 77, Mass. Ave. Room 1-235A&B, Cambridge, MA 02139, USA
    • Laboratory for Atomistic and Molecular Mechanics, Department of Civil and Environmental Engineering, Center for Materials Science and Engineering, Center for Computational Engineering, Massachusetts Institute of Technology 77, Mass. Ave. Room 1-235A&B, Cambridge, MA 02139, USA.
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  • Acknowledgements, Funding for this research is provided by the Army Research Office (ARO), grant number W911NF-06-1-0291 (program officer Dr. Bruce LaMattina).

Abstract

original image

The figure shows a centrosymmetry analysis of the dislocation and defect structure in the metallic nanocomposite as obtained from molecular dynamics simulations, emphasizing the slipped regions during initial plasticity. The black region depicts the location of the hard platelet embedded in a soft matrix.

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