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Multiscale Modeling of Polymers–Bridging the Molecular Continuum Divide

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Abstract:

A method to reduce the degrees freedom in molecular mechanics simulation is presented. Although the approach is formulated for amorphous materials, it is equally applicable to crystalline materials. The method is selectively applied to regions where molecular displacements are expected to be small while simultaneously using classical molecular mechanics for regions undergoing large deformation. Its accuracy and computational efficiency are demonstrated through the simulation of a polymer-like substrate indented by a rigid indentor. The region directly below the indentor is modelled by classical molecular mechanics while the region further away has the degrees of freedom reduced by about 50 times.

Keywords: AMORPHOUS CELL; MULTISCALE SIMULATION; POLYMERS

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2009.C081

Publication date: 2009-02-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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