新型仿生层级折纸负泊松比蜂窝结构轴向压缩下的耐撞性能

打开文本图片集

中图分类号：U467.14；U463.326 文献标志码：B DOI：10.19710/J.cnki.1003-8817.20250016

Crashworthinessof A New Bio-Inspired Hierarchical Origami AuxeticHoneycombStructureunderAxialCompression

， ， ， ， （1.SchoolofAutomotiveandTransportationEgineering，HefeiUniversityofTechnologyHefei230o0;2.LuzhouRongda Intelligent Transmission Limited Company，Luzhou 644000）

Abstract：Theauxetic honeycomb structures，due to theiruniqueauxetic efect，have considerable potential for application in the field of energyabsorption.To further improve their mechanical performance，this paper proposes a novelbio-inspiredhierarchicalorigamiauxetichoneycombstructure，combiningbio-inspiredhierarchicaldesignand origamistructure.Numerical simulationsareconducted tosystematicallyinvestigate thecrashworthinessof the structures underaxial compresion.Theresultsshow that，compared with the traditional auxetic honeycomb structure， theenergyabsorption capacityof the novel bio-inspired hierarchical origami auxetic honeycomb structureis significantly enhanced.Moreover，the introductionof theorigami design ensures moreuniformdeformation during the axial crushing process，and effctively reduces or even eliminates the initial peak force of the structures.

Key words： Crashworthiness，Honeycomb structure，Auxetic，Bio-inspired hierarchical，Origamistructure

1前言

蜂窝结构具有优异的力学性能和抗冲击性能，普遍作为缓冲吸能装置的核心材料，广泛应用于车辆工程、航空航天、土木建筑等领域[1-3]。（剩余8093字）