Graphene-based carbon honeycombs (GCHs) show outstanding physical and mechanical properties, and excellent potential applications. Based on molecular dynamic simulations, we find that temperature plays an important role in the mechanical properties of GCHs. In both the in-plane and out-of-plane cases, the tensile strength and fracture strain of GCHs decrease significantly as temperature increases from 10 to 1800 K. Under compressive deformation, the in-plane compressive stress-strain curves vary slightly when the temperature is lower than 900 K, and change acutely at temperature higher than 1200 K. The out-of-plane compressive failure stress and strain decrease prominently with increasing of temperature from 10 to 1800 K. Our results provide a theoretical guidance for GCHs application in different temperature environment.

石墨烯基碳蜂窝（GCH）具有出色的物理和机械性能，并具有出色的潜在应用。基于分子动力学模拟，我们发现温度在GCH的机械性能中起着重要作用。在平面内和平面外情况下，随着温度从10 K升高到1800 K，GCH的拉伸强度和断裂应变均会显着降低。在压缩变形下，当GCH的压缩应力变化时，平面内的压缩应力-应变曲线会略有变化。温度低于900 K时，温度高于1200 K时会急剧变化。随着温度从10升高到1800 K，面外压缩破坏应力和应变显着降低。我们的结果为GCHs的应用提供了理论指导不同温度的环境。