Energy absorption performance has been a long-pursued research topic in designing desired materials and structures subject to external dynamic loading. Inspired by natural bio-structures, herein, we develop both numerical and theoretical models to analyze the energy absorption behaviors of Weaire, Floret, and Kagome-shaped thin-walled structures. We demonstrate that these bio-inspired structures possess superior energy absorption capabilities compared to the traditional thin-walled structures, with the specific energy absorption about 44% higher than the traditional honeycomb. The developed mechanical model captures the fundamental characteristics of the bio-inspired honeycomb, and the mean crushing force in all three structures is accurately predicted. Results indicate that although the basic energy absorption and deformation mode remain the same, varied geometry design and the corresponding material distribution can further boost the energy absorption of the structure, providing a much broader design space for the next-generation impact energy absorption structures and systems.

在设计受外部动态载荷影响的所需材料和结构时，能量吸收性能一直是一个长期追求的研究课题。受自然生物结构的启发，在此，我们开发了数值模型和理论模型来分析 Weaire、Floret 和 Kagome 形薄壁结构的能量吸收行为。我们证明这些仿生结构与传统的薄壁结构相比具有优越的能量吸收能力，比能量吸收比传统蜂窝高约 44%。开发的机械模型捕捉了仿生蜂窝的基本特征，并准确预测了所有三种结构的平均破碎力。结果表明，虽然基本的能量吸收和变形模式保持不变，