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1、MaterialSciences材料科学,2014,4,96-102PublishedOnlineMay2014inHans.http://www.hanspub.org/journal/mshttp://dx.doi.org/10.12677/ms.2014.43015AStudyonDynamicCompressiveMechanicalBehaviorsofAluminumHoneycombsShuangTang1,2,YunlaiDeng1,2,KedaJiang2,ChenqiLei2,ZhaoYang21Scho
2、olofMaterialsScienceandEngineering,CentralSouthUniversity,Changsha2KeyLaboratoryofNonferrousMaterialsScienceandEngineering,MinistryofEducation,CentralSouthUniversity,ChangshaEmail:tangshuang1998@163.com,luckdeng@mail.csu.edu.cnthndthReceived:Mar.6,2014;revised:Apr.
3、2,2014;accepted:Apr.11,2014Copyright©2014byauthorsandHansPublishersInc.ThisworkislicensedundertheCreativeCommonsAttributionInternationalLicense(CCBY).http://creativecommons.org/licenses/by/4.0/AbstractSplitHopkinsonPressureBar(SHPB)methodwasemployedtodeterminetheco
4、mpressivedy-namicmechanicalpropertiesofthreekindsofhoneycombs,whichweremadeofAlalloy5052H18withsidelengths(b)of1.0-1.83mm,foilthicknesses(t)of0.04-0.06mmandrelativedensities(ρ)of0.05-0.06.Resultsindicatedthat:athighstrainrate,thedynamicstress-straincurvesoftheAlhon
5、eycombsshowageneral"three-stage"characteristicofporousmaterials.Thedensificationstrainsaregreaterthan65%.Thespecificrangeofenergyabsorptionis3.32-5.03MJ/m3,andtherangeofthemaximumvaluesofenergyabsorptionefficiencyis0.65-0.7.EventhoughonlytheyieldstressoftheAlhoneyc
6、ombwiththeshortestsidelength(1mm)isgreaterthanitselfplateaustress,allthetestedAlhoneycombshavethecharacterofstrainratesensitivity.ThespecificenergyabsorptionandtheenergyabsorptionefficiencyhavenosignificantdifferencebetweenthetwoAlhoneycombswiththesameratioofsidele
7、ngths/foilthickness(1.0mm/0.04mm,1.5mm/0.06mm).KeywordsAluminumHoneycomb,DynamicMechanicalProperties,EnergyAbsorption,SHPB铝蜂窝材料动态压缩力学性能及吸能分析1,21,2222唐爽，邓运来，姜科达，雷郴祁，杨昭96铝蜂窝材料动态压缩力学性能及吸能分析1中南大学材料科学与工程学院，长沙2中南大学有色金属材料科学与工程教育部重点实验室，长沙Email:tangshuang1998@163.com,luckde
8、ng@mail.csu.edu.cn收稿日期：2014年3月6日；修回日期：2014年4月2日；录用日期：2014年4月11日摘要采用分离式霍普金森压杆(SHPB)技术，研究了边长为1.0~1.83mm，箔厚度为0.04~0.06mm，相对密度为0.05~0.06的三种5052H18铝合金
