In this paper, the effects of adding carbon nanotubes (CNTs) on the bending, buckling and free vibration characteristics of carbon fabric/polymer hybrid nanocomposite plates (HNCPs) are investigated using a computational approach. First, a hierarchical finite element micromechanics approach is proposed to estimate the hybrid composite properties. The formation of interfacial region due to the non-bonded van der Waals interactions among the CNTs and polymer is considered. Then, finite element analysis is carried out to compute the mechanical responses of the CNT/carbon fabric hybrid composite structures. It is found that incorporating the CNTs into the carbon fabric-reinforced polymer materials results in an enhancement of buckling capacity and natural frequencies of the HNCPs. The maximum deflection of the traditional carbon fabric/polymer composite plates is decreased by adding the CNTs. A parametric study is accomplished to evaluate the influences of amount and aspect ratio of CNTs, material properties and thickness of interfacial region as well as the thickness and various shapes of plate on the flexural deformation, buckling and vibration characteristics of the HNCPs. The predictions are compared with those available in the literature to verify the validity of the presented computational model.

在本文中，使用计算方法研究了添加碳纳米管（CNT）对碳纤维/聚合物杂化纳米复合板（HNCP）的弯曲，屈曲和自由振动特性的影响。首先，提出了一种分层有限元微力学方法来估计混合复合材料的性能。考虑了由于CNT与聚合物之间的未结合的范德华相互作用而形成的界面区域。然后，进行了有限元分析，以计算碳纳米管/碳纤维织物混合复合结构的力学响应。发现将CNT结合到碳纤维增强的聚合物材料中导致HNCP的屈曲能力和固有频率的增强。通过添加碳纳米管，可以降低传统碳纤维/聚合物复合材料板的最大挠度。完成了一项参数研究，以评估CNT的数量和纵横比，界面区域的材料特性和厚度以及板的厚度和各种形状对HNCP的弯曲变形，屈曲和振动特性的影响。将这些预测与文献中的预测进行比较，以验证所提出的计算模型的有效性。HNCP的屈曲和振动特性。将这些预测与文献中的预测进行比较，以验证所提出的计算模型的有效性。HNCP的屈曲和振动特性。将这些预测与文献中的预测进行比较，以验证所提出的计算模型的有效性。