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本文对FRP蜂窝夹芯板在扭矩作用下的工作性能进行了研究。采用ABAQUS有限元软件,建立了两类模型,即实际尺寸的模型和等效应力的模型。特别是等效应力模型,采用微观、宏观力学确定了面板的材料属性,采用均质化方法和材料力学方法得到了蜂窝芯层的材料属性,这都为有限元建模奠定了基础。经过比较,实际尺寸的模型与理论结果吻合较好。然而,由于这些模型比较复杂,需要大量的要素,采用等效应力模型也是合适的。与理论数据相比较,等效应力模型也能提供满意的结果。
In this paper, the working performance of FRP honeycomb sandwich panel under torque is studied. Using ABAQUS finite element software, two types of models are established, namely the actual size model and the equivalent stress model. Especially the equivalent stress model. The material properties of the panel are determined by microscopic and macroscopic mechanics. The material properties of the honeycomb core are obtained by the method of homogenization and the method of mechanics of materials. All of these lay the foundation for the finite element modeling. After comparison, the actual size model is in good agreement with the theoretical result. However, since these models are complex and require a large number of elements, the use of equivalent stress models is also appropriate. Compared with the theoretical data, equivalent stress model can also provide satisfactory results.