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Atomic Mechanism of Flow in Simple Liquids under Shear

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 نشر من قبل Takuya Iwashita
 تاريخ النشر 2012
  مجال البحث فيزياء
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Atomic correlations in a simple liquid in steady-state flow under shear stress were studied by molecular dynamics simulation. The local atomic level strain was determined through the anisotropic pair-density function (PDF). The atomic level strain has a limited spatial extension whose range is dependent on the strain rate and extrapolates to zero at the critical strain rate. A failure event is identified with altering the local topology of atomic connectivity by exchanging bonds among neighboring atoms.



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