Effect of honeycomb cell geometry on compressive properties: Finite element analysis and experimental verification

Science and Technology of Materials Pub Date : 2018-01-01 DOI:10.1016/j.stmat.2018.02.001

C. Baumgart , T. Halle , C. Weigelt , L. Krüger , C.G. Aneziris

{"title":"Effect of honeycomb cell geometry on compressive properties: Finite element analysis and experimental verification","authors":"C. Baumgart , T. Halle , C. Weigelt , L. Krüger , C.G. Aneziris","doi":"10.1016/j.stmat.2018.02.001","DOIUrl":null,"url":null,"abstract":"<div><p>Metallic cellular materials are characterized by a low specific weight and a high energy absorption capability<span><span>, which make them promising for application in devices of the transportation industry in order to meet the requirements of a reduced fuel consumption and carbon dioxide output. This intention necessitates the evaluation of material performance under several load conditions. Investigations have shown that the out-of-plane properties with regard to specific energy absorption (SEA) capability of high-density steel honeycomb structures with square-celled profile are outstanding while the potential under in-plane conditions is distinctly lower. Therefore, FEM-based numerical analyses are conducted by the use of ABAQUS-software to investigate the influence of </span>cell geometry. The results reveal an enhancement of absorbable energy in in-plane direction by applying an ordered sequence of hexagons and triangles, the so-called Kagome geometry. Comparative quasi-static compression tests serve to verify the FE-analysis. The obtained results are discussed with respect to strength level and achieved SEA capability in dependence of the cell geometry and load condition.</span></p></div>","PeriodicalId":101145,"journal":{"name":"Science and Technology of Materials","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.stmat.2018.02.001","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science and Technology of Materials","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2603636318300083","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 8

Abstract

Metallic cellular materials are characterized by a low specific weight and a high energy absorption capability, which make them promising for application in devices of the transportation industry in order to meet the requirements of a reduced fuel consumption and carbon dioxide output. This intention necessitates the evaluation of material performance under several load conditions. Investigations have shown that the out-of-plane properties with regard to specific energy absorption (SEA) capability of high-density steel honeycomb structures with square-celled profile are outstanding while the potential under in-plane conditions is distinctly lower. Therefore, FEM-based numerical analyses are conducted by the use of ABAQUS-software to investigate the influence of cell geometry. The results reveal an enhancement of absorbable energy in in-plane direction by applying an ordered sequence of hexagons and triangles, the so-called Kagome geometry. Comparative quasi-static compression tests serve to verify the FE-analysis. The obtained results are discussed with respect to strength level and achieved SEA capability in dependence of the cell geometry and load condition.

查看原文本刊更多论文

蜂窝单元几何形状对压缩性能的影响:有限元分析与实验验证

金属蜂窝材料具有低比重和高能量吸收能力的特点，这使得它们在交通运输行业的设备中有很大的应用前景，以满足降低燃料消耗和二氧化碳排放量的要求。这种意图需要评估材料在几种载荷条件下的性能。研究表明，方阵型高密度钢蜂窝结构的面外比能吸收性能突出，而面内比能吸收潜力明显较低。因此，利用abaqus软件进行基于有限元的数值分析，研究细胞几何形状的影响。结果表明，通过应用有序的六边形和三角形序列，即所谓的Kagome几何，可以增强平面内方向的可吸收能量。比较准静态压缩试验验证了有限元分析的正确性。所得结果讨论了强度水平和实现SEA能力与单元几何形状和载荷条件的关系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Science and Technology of Materials

自引率

0.00%

发文量