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利用有限元软件ANSYS,建立了三维整体中空复合材料结构模型,进行压缩力学性能分析。利用该模型,以芯材高度、芯材密度和材料特性(弹性模量)为参数,详细研究了其对材料压缩性能的影响,并对其影响特征进行了分析和讨论。结果表明:三维整体中空复合材料在受压状态下,芯材与上下面板相接处应力最大,最容易发生压缩破坏;材料的压缩性能随着芯材密度、材料弹性模量的增加而提高,随着芯材高度的增加而下降。该研究结果可为整体中空复合材料的结构优化提供参考。
Using the finite element software ANSYS, a three-dimensional hollow composite structure model was established and its compressive mechanical properties were analyzed. Using this model, the influence of the material on the compressibility of the material was studied in detail with the core material height, core material density and material properties (elastic modulus) as the parameters. The influence characteristics of the material were analyzed and discussed. The results show that under the pressure, the three-dimensional hollow composite material has the highest stress at the junction with the upper and lower panels, and is most prone to compressive failure. The compressibility of the material increases with the increase of the density of the core material and the elastic modulus of the material. As the core height increases and decreases. The results of this study can provide a reference for the structural optimization of hollow composite materials.