A mixed-form solution to the macroscopic elastic properties of 2D triaxially braided composites based on a concentric cylinder model and the rule of mixture
A mixed-form solution to the macroscopic elastic properties of 2D triaxially braided composites based on a concentric cylinder model and the rule of mixture
复制标题
基于同心圆柱模型和混合规则的二维三轴编织复合材料宏观弹性性能的混合形式求解
DOI：
10.1016/j.compositesb.2018.09.008
复制
发表时间：
2019-01-01
影响因子：
13.1
通讯作者：
Fu, Shaoyun
中科院分区：
文献类型：
--
作者：
Ye, Wei;Li, Wenbo;Fu, Shaoyun
了解二维三轴编织复合材料（2DTBC）的弹性性能是进一步分析和设计由2DTBC制成的结构部件的基础。基于同心圆柱模型（CCM）和混合规则（RoM），我们重新制定了各向异性碳纤维增强体的2DTBC的整体刚度，以取代目前可用的各向同性玻璃纤维增强体的替代方案。首先，比较了CCM、Quek模型和Shokrieh模型计算的整体刚度。结果表明，在相同条件下，Shokrieh模型的性能相对较差。第二，比较了Shokrieh模型、CCM模型、Quek模型和CCM + RoM模型的性能通过对不同编织构型下的Reuss型和Voigt型两种编织构型的对比实验以及对混杂碳/玻璃纤维增强2DTBC的实验研究，揭示了Quek模型和CCM + RoM（Reuss型）可以产生同样大的结果，并且CCM + RoM（Reuss型）在某些情况下表现得更好。
Understanding the elastic properties of 2D triaxially braided composites (2DTBCs) is fundamental for further analysis and design of structural components made from 2DTBCs. Based on a concentric cylinder model (CCM) and the rule of mixture (RoM), we reformulated the global stiffness of 2DTBCs for the anisotropic carbon fiber reinforcement to replace the currently available formulations for the isotropic glass fiber reinforcement with a replacement scheme. First, the global stiffness calculated from CCM, Quek's model and Shokrieh's model was compared for clarification. It was found that Shokrieh's model had the relatively worse performance under the same conditions. Second, the performances of Shokrieh's model, CCM, Quek's model and CCM + RoM (Reuss-type and Voigt-type) were compared using available experiments under various braiding configurations and our experiments on the hybrid carbon/glass fiber reinforced 2DTBCs, which revealed that Quek's model and CCM + RoM (Reuss-type) could yield equivalently great results, and CCM + RoM (Reuss-type) performed even better in some cases.