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为了研究石墨烯的添加量对石墨烯/羟基磷灰石复合材料力学性能(弹性模量和泊松比)的影响,开发了石墨烯/羟基磷灰石复合材料的随机分布模型自动生成算法以及相应的计算程序;由该模型建立石墨烯/羟基磷灰石复合材料的有限元模型,计算了添加不同质量分数的石墨烯对复合材料力学性能的影响,通过与实验数据的对比验证了该算法的有效性。结果表明:添加0.25%~1.25%(质量分数)的石墨烯后复合材料的弹性模量可增加12%~50%,表明添加少量石墨烯即能有效地改善羟基磷灰石的力学性能。
In order to study the effect of the amount of graphene added on the mechanical properties (elastic modulus and Poisson’s ratio) of graphene / hydroxyapatite composites, an algorithm for generating stochastic distribution models of graphene / hydroxyapatite composites and corresponding The model was used to establish the finite element model of graphene / hydroxyapatite composites. The influence of graphene with different mass fraction on the mechanical properties of the composites was calculated. By comparing with the experimental data, Effectiveness. The results show that the elastic modulus of the composites increases by 12% ~ 50% after adding 0.25% ~ 1.25% (mass fraction) graphene, which indicates that adding a small amount of graphene can effectively improve the mechanical properties of hydroxyapatite.