复合材料夹芯结构准静态稳定性性能现状概述

Research status of quasi-static stability performance of composite sandwich structures

  • 摘要: 复合材料夹芯结构由于其优异的比强度、比刚度及较小的表观密度的优点而广泛应用于航空航天、船舶等各个领域。本文从理论研究、仿真分析、实验研究这3个方面出发,综述了蜂窝、泡沫、点阵、褶皱4种夹芯结构在准静态稳定性研究方面的现状。蜂窝夹芯结构的研究较成熟,进一步的研究应集中于应用领域;泡沫夹芯结构在面芯问题方面有待增强,可考虑纤维缝合技术;褶皱夹芯结构理论方面有待进一步研究,潜力巨大;点阵夹芯结构较其他结构抗屈曲能力更强,但是依然存在面芯粘接问题。复合材料夹芯结构在准静态稳定性方面的问题主要集中在面芯粘接方面,纤维缝合技术可以有效增强面芯性能,该方面的研究对增强复合材料夹芯结构稳定性有较强的潜力。

     

    Abstract: Composite sandwich structures are widely used in aerospace, shipbuilding and other fields due to their excellent strength- and stiffness-to-weight ratio and small apparent density. From the three aspects of theoretical research, simulation analysis and experimental research, this paper summarizes the current situation of quasi-static stability research of honeycomb, foam, lattice and foldcore sandwich structures. The research on honeycomb sandwich structure is relatively mature, and further research should focus on the application field. The foam sandwich structure needs to be strengthened in the panel/core interface, and the fiber stitching technology can be considered. The theory of foldcore sandwich structure needs further study and has great potential. The lattice sandwich structure has stronger anti-buckling ability than other structures, but there is still a problem of face/core bonding. The problem of the quasi-static stability of the composite sandwich structure is mainly focused on the bonding of the face/core. The fiber stitching technology can effectively enhance the performance of the face/core. The research in this area has a strong potential for enhancing the stability of the composite sandwich structure.

     

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