新型仿生層級(jí)折紙負(fù)泊松比蜂窩結(jié)構(gòu)軸向壓縮下的耐撞性能

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中圖分類(lèi)號(hào)：U467.14；U463.326 文獻(xiàn)標(biāo)志碼：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

蜂窩結(jié)構(gòu)具有優(yōu)異的力學(xué)性能和抗沖擊性能，普遍作為緩沖吸能裝置的核心材料，廣泛應(yīng)用于車(chē)輛工程、航空航天、土木建筑等領(lǐng)域[1-3]。（剩余8093字）