Hertz Contact at the Nanoscale with a 3D Multiscale Model

Abstract:

This paper presents a three-dimensional multiscale computational model, which is proposed to combine the simplicity of FEM model and the atomistic interactions between two solids. A significant advantage of the model is that atoms are populated in the contact regions, which saves significant computation time compared to fully MD simulations. The model is used in the case of asperity contact. The normal displacement, contact radius and pressure distribution are compared with those from Hertz’s solution and atomistic simulations in the literature. Some important features of nanoscale contacts obtained by MD simulations can be caught by the model with acceptable accuracy and low computational cost.

• Periodical: Applied Mechanics and Materials (Volume 846)
• Pages: 306-311
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.846.306
• Online since: July 2016
• Authors: Jie Zhang*, Guillaume Michal, Ahn Kiet Tieu, Hong Tao Zhu, Guan Yu Deng
• Keywords: Continuum Mechanics, Multiscale Modelling, Nanoscale

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