Volume 121, Number 1, January 2018
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||09 March 2018|
Wall effects on spatial correlations of non-affine strain in a 3D model glass
ICAMS, Ruhr-Universität Bochum - Universitätsstraße 150, 44780 Bochum, Germany
Received: 29 November 2017
Accepted: 20 February 2018
Effects of hard planar walls with a particle scale roughness on the spatial correlations of non-affine strain in amorphous solids are investigated via molecular dynamics simulations. When determined within layers parallel to the wall plane, normalized non-affine strain correlations are enhanced within layers closer to the wall. The amplitude of these correlations, on the other hand, is found to be suppressed by the wall. While the former is connected to the effects of a hard boundary on the continuum mechanics scale, the latter is attributed to molecular scale wall effects on the size of the region (nearest-neighbor cage), explored by particles on intermediate times scales.
PACS: 81.05.Kf – Glasses (including metallic glasses) / 62.20.-x – Mechanical properties of solids / 62.20.F- – Deformation and plasticity
© EPLA, 2018
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