This study aims on the dynamic and tribological characterization of a Single Layer Graphene Sheet (SLGS) including the effects of a graphene cantilever’s deflection. A 10 x 10 nm graphene model is developed, which is modally analyzed for both Zigzag and Armchair lattices. A typical Atomic Force Microscope (AFM) cantilever with carbon coated tip is also modeled during the simulation. The friction forces applied on the tip during its movement can be evaluated. The real contact area is characterized as the carbon atom tip is interlinked with the graphene atoms via the Lennard-Jones model. This study confirmed that the deformation of the AFM cantilever, is important to predict more accurately the tribological behaviour of graphene and the effect of its lattice orientation to its frictional properties. Therefore, this simulation provides an interesting way to understand the complex interaction between the cantilever tip and the sample in different contact conditions.
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机译：这项研究旨在研究单层石墨烯片（SLGS）的动态和摩擦学特性，包括石墨烯悬臂的挠度影响。开发了一个10 x 10 nm的石墨烯模型，可以对之字形和扶手椅状晶格进行模态分析。在仿真过程中，还对带有碳涂层尖端的典型原子力显微镜（AFM）悬臂进行了建模。可以评估在尖端移动过程中施加在尖端上的摩擦力。实际接触面积的特征在于碳原子尖端通过Lennard-Jones模型与石墨烯原子互连。这项研究证实，AFM悬臂的变形对于更准确地预测石墨烯的摩擦学行为及其晶格取向对其摩擦性能的影响非常重要。因此，该模拟提供了一种有趣的方式来了解悬臂尖端与样品在不同接触条件下的复杂相互作用。
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