A novel hybrid composite honeycomb sandwich structure (HCHSS) and metallic honeycomb sandwich structure (MHSS) were developed to obtain realistic and blast resistance parameters for the consideration of blast loading. Hybrid composite square honeycomb sandwich structure (HCSHSS) and metallic honeycomb sandwich structure with different cores such as square, hexagonal, octagonal, and circular were modelled to obtain the target protection level (lowest deflection) for the vehicle armour structure. The Johnson-Cook and Donadon failure criteria were incorporated into finite element analysis (FEA) for MHSS and HCSHSS, respectively. For the progressive damage modelling of the HCSHSS, the Donadon criterion was implemented in ABAQUS/Explicit software as a user-defined subroutine. The HCSHSS showed the fibre failure, matrix failure and delamination modes of failure in composite laminates and the plastic deformation failure of the core and metal plates. The HCSHSS was shown to have excellent blast worthiness properties in comparison to the MHSS. The metallic circular honeycomb sandwich structure (MCHSS) was shown to have the minimum deflection of the top and bottom face plates as compared to the square, hexagonal and octagonal honeycomb sandwich structures. A novel HCSHSS has obtained the minimum deflection for both the top and the bottom face plates in comparison to the other MHSS.

中文翻译：

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空气冲击载荷下混合金属夹层结构的高效设计

开发了一种新型混合复合蜂窝夹层结构 (HCHSS) 和金属蜂窝夹层结构 (MHSS)，以获得考虑爆炸载荷的实际和抗爆参数。对混合复合方形蜂窝夹层结构（HCSHSS）和具有方形、六边形、八边形和圆形等不同芯的金属蜂窝夹层结构进行建模，以获得车辆装甲结构的目标保护水平（最低挠度）。Johnson-Cook 和 Donadon 失效准则分别被纳入 MHSS 和 HCSHSS 的有限元分析 (FEA)。对于 HCSHSS 的渐进式损伤建模，Donadon 准则作为用户定义的子程序在 ABAQUS/Explicit 软件中实施。HCSHSS 显示光纤故障，复合材料层压板中的基体失效和分层失效模式以及芯板和金属板的塑性变形失效。与 MHSS 相比，HCSHSS 被证明具有出色的防爆性能。与方形、六边形和八边形蜂窝夹层结构相比，金属圆形蜂窝夹层结构 (MCHSS) 的顶部和底部面板的变形最小。与其他 MHSS 相比，一种新型 HCSHSS 的顶部和底部面板都获得了最小的挠度。与方形、六边形和八边形蜂窝夹层结构相比，金属圆形蜂窝夹层结构 (MCHSS) 的顶部和底部面板的变形最小。与其他 MHSS 相比，一种新型 HCSHSS 的顶部和底部面板都获得了最小的挠度。与方形、六边形和八边形蜂窝夹层结构相比，金属圆形蜂窝夹层结构 (MCHSS) 的顶部和底部面板的变形最小。与其他 MHSS 相比，一种新型 HCSHSS 的顶部和底部面板都获得了最小的挠度。