Abstract Novel corrugated hierarchical truncated conical shells (HTCS) with corrugated cores were designed for energy absorption under quasi-static axial compression. The crashworthiness of the HTCS were studied by experimental and numerical methods. The influence of the number of corrugations and the number of layers of corrugated core on total energy absorption was quantified. Finally, based on the surrogate model and genetic algorithm of NSGA-II, the structure was optimized with multiple objectives. Increasing either the HS or N or both can form more stable and more plastic hinges and cause obvious coupling effects, beneficial for the HTCS to achieve enhanced resistance to overall buckling and enhanced energy absorption.

中文翻译：

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具有波纹芯的分层截头圆锥壳的耐撞性

摘要 设计了具有波纹芯的新型波纹分级截锥壳（HTCS）用于准静态轴向压缩下的能量吸收。通过实验和数值方法研究了 HTCS 的耐撞性。量化波纹数和波纹芯层数对总能量吸收的影响。最后，基于NSGA-II的代理模型和遗传算法，对结构进行多目标优化。增加 HS 或 N 或两者都可以形成更稳定和更多的塑性铰并产生明显的耦合效应，有利于 HTCS 实现增强的整体抗屈曲能力和增强的能量吸收。