▎ 摘　　要

The interface load transfer ability between graphene (Gr) and metal-matrix materials is often the limiting factor in determining the mechanical property of Gr reinforced metal-matrix nanocomposites. Herein, the interfacial properties of graphene reinforce copper nanocomposite (Gr/CNc) are investigated by performing a series of pull-out simulations using molecular dynamics simulation method, considering the effects of Gr dimensions and aggregations. It is found that the interface strength of Gr/CNc is stronger than carbon nanotube reinforced Cu nanocomposite (CNT/CNc) owing to the two dimensional platelet structure of Gr. In particular, we found that an appropriate formulae can be developed to predict the interfacial shear strength for an arbitrary dimensions single layer Gr/CNc system. However, the interface load transfer ability of Gr/CNc reduces significantly if Gr aggregation phenomenon happens.