In this work, we propose a new type of thin-walled energy-absorbed structure with hollow columns that possesses a design inspired by the beetle elytra. The failure mode of the bionic thin-walled structures is firstly discussed by developing a theoretical model. The energy absorption properties of these bio-inspired multi-cell thin-walled structures have been then investigated using nonlinear finite element simulations. The values of the specific energy absorption and the crushing force effectiveness have been evaluated for different structures with parametrized column nested configurations. Dynamic impact simulations of multi-cell tubes with different columns nested modes, wall thickness and impact angles have been performed, and the results discussed.

中文翻译：

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受甲虫鞘翅启发的空心柱多细胞吸能结构

在这项工作中，我们提出了一种具有空心柱的新型薄壁吸能结构，其设计灵感来自甲虫鞘翅。首先通过建立理论模型讨论仿生薄壁结构的失效模式。然后使用非线性有限元模拟研究了这些仿生多细胞薄壁结构的能量吸收特性。已经评估了具有参数化柱嵌套配置的不同结构的比能量吸收和破碎力有效性的值。已经进行了具有不同柱嵌套模式、壁厚和冲击角度的多单元管的动态冲击模拟，并讨论了结果。