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|a Schuh, Christopher A.
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|a Massachusetts Institute of Technology. Department of Materials Science and Engineering
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|a Schuh, Christopher A.
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|a Schuh, Christopher A.
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|a Rodney, David
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|a Distribution of Thermally Activated Plastic Events in a Flowing Glass
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|b American Physical Society,
|c 2010-02-03T13:21:21Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/51337
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|a The potential energy landscape of a flowing metallic glass is revealed using the activation-relaxation technique. For a two-dimensional Lennard-Jones system initially deformed into a steady-state condition through quasistatic shear, the distribution of activation energies is shown to contain a large fraction of low-energy barriers, consistent with a highly nonequilibrium flow state. The distribution of plastic strains has a fundamentally different shape than that obtained during quasistatic simulations, exhibiting a peak at finite strain and, after elastic unloading, a nonzero mean plastic strain that evidences a polarization of the flow state. No significant correlation is found between the activation energy of a plastic event and its associated plastic strain.
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|a Office of Naval Research
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|a Delegation Generale a l'Armement
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|a en_US
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|a Article
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|t Physical Review Letters
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