In order to reveal the relationship between the four-point bending behaviour and structural parameters of Nomex honeycomb sandwich panels (NHSP), a comparison of the bending performance of sandwich panels with different specifications and directions was conducted. The ability of NHSP to improve the strength and stiffness of bare honeycombs and aluminium plates was also quantified. Furthermore, based on experimental data and existing theories, the critical relationship of each failure type of NHSP under four-point loading conditions was derived. The drawn bending failure map reveals the relationship between core layer performance parameters and failure types, which can provide guidance for the optimal design of sandwich structure in practical application.

为了揭示Nomex蜂窝夹芯板（NHSP）的四点弯曲行为与结构参数之间的关系，对不同规格和方向的夹芯板的弯曲性能进行了比较。NHSP 提高裸蜂窝和铝板强度和刚度的能力也被量化。此外，基于实验数据和现有理论，推导出NHSP在四点加载条件下每种失效类型的临界关系。绘制的弯曲破坏图揭示了芯层性能参数与破坏类型之间的关系，可为实际应用中夹层结构的优化设计提供指导。