In this paper, the mechanical properties of multilayer graphene embedded in aluminum matrix (GRA@Al) under uniaxial tension were investigated using molecular dynamics (MD) simulation method. The results clearly show that the graphene layer could provide effective barriers against the dislocation propagation across the interfaces resulting in the outstanding increment of the composite stiffness and strength. Moreover, five different simulation models are used to investigate the graphene layer dependency on the mechanical properties of the composites. It is found that the existence of the graphene has a significant influence on the Young's modulus, tensile strength and fracture strain. The influence on mechanical properties is mostly localized to the first two layers of graphene. With the increase of graphene layer, the mechanical properties remain nearly the same. The Al₄C₃ generated at the C–Al interface maybe the direct cause of this phenomenon.

本文采用分子动力学（MD）模拟方法研究了单轴拉伸下埋入铝基（GRA @ Al）中的多层石墨烯的力学性能。结果清楚地表明，石墨烯层可以提供有效的阻挡层，以防止位错跨界面传播，从而显着提高复合材料的刚度和强度。此外，使用五个不同的仿真模型来研究石墨烯层对复合材料机械性能的依赖性。发现石墨烯的存在对杨氏模量，拉伸强度和断裂应变具有显着影响。对机械性能的影响主要局限于石墨烯的前​​两层。随着石墨烯层的增加，机械性能几乎保持不变。铝在C–Al界面产生的₄ C ₃可能是此现象的直接原因。