论文标题
簇的形成对血小板增强聚合物的有效弹性特性的影响
Influence of the formation of clusters on the effective elastic properties of platelet reinforced polymers
论文作者
论文摘要
使用具有定期代表体积元件（RVE）的有限元方法研究了聚类对由MXENE或石墨烯血小板增强的复合材料有效特性的影响。混合2D/3D有限元网格用于降低数值模型的计算复杂性。随着夹杂物的体积分数的增加，产生了RVE的几种实现，从而导致血小板进行性聚类。通过Mori-Tanaka方法和Halpin-Tsai方程进行了比较，将复合材料的有效特性与分析预测进行了比较，并建立了分析模型的适用性限制。提出了两步均质化方案，以提高RVE的有效特性的准确性和稳定性相对较少。提出了简单的缩放关系，以将数值结果推广到具有其他长宽比的血小板。
The effect of the clusterization on the effective properties of a composite material reinforced by MXene or graphene platelets is studied using the finite element method with periodic representative volume element (RVE). A hybrid 2D/3D finite element mesh is used to reduce the computational complexity of the numerical model. Several realizations of an RVE were generated with increasing volume fractions of inclusions, resulting in progressive clusterization of the platelets. Numerically obtained effective properties of the composite are compared with analytical predictions by the Mori-Tanaka method and Halpin-Tsai equations, and the limits of the applicability of the analytical models are established. A two-step homogenization scheme is proposed to increase the accuracy and stability of the effective properties of an RVE with a relatively small number of inclusions. Simple scaling relations are proposed to generalize numerical results to platelets with other aspect ratios.
