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1、ProgressinMaterialsScience46(2001)309±327www.elsevier.com/locate/pmatsciThetopologicaldesignofmultifunctionalcellularmetalsA.G.Evansa,*,J.W.Hutchinsonb,N.A.Fleckc,M.F.Ashbyc,H.N.G.WadleydaPrincetonMaterialsInstitute,PrincetonUniversity,Princeton,NJ08540,USAbDivisionofEngineeringa
2、ndAppliedSciences,HarvardUniversity,Cambridge,MA02138,USAcCambridgeUniversityEngineeringDepartment,TrumpingtonStreet,Cambridge,UKdDepartmentofMaterialsScienceandEngineering,UniversityofVirginia,Charlottesville,VA22903,USAAbstractThemultifunctionalperformanceofstochastic(foamed)ce
3、llularmetalsisnowwelldocu-mented.Thisarticlecomparessuchmaterialswiththeprojectedcapabilitiesofmaterialswithperiodiccells,con®guredascoresofpanels,tubesandshells.Theimplementationoppor-tunitiesareasultra-lightstructures,forcompactcooling,inenergyabsorptionandvibrationcontrol.Thep
4、eriodictopologiescompriseeithermicro-trusslatticesorprismaticmaterials.Performancebene®tsthatcanbeexpecteduponimplementingtheseperiodicmaterialsarepresentedandcomparedwithcompetingconcepts.Methodsformanufacturingthesemateri-alsarediscussedandsomecost/performancetrade-osareaddress
5、ed.#2001ElsevierScienceLtd.Allrightsreserved.Contents1.Introduction......................................................................................................3102.Benchmarksforperformance............................................................................3122.1
6、.Ultra-lightstructures.................................................................................3122.2.Heatdissipationmedia.............................................................................3152.3.Otherfunctionalities..............................................
7、...................................3183.Periodicmaterials.............................................................................................3193.1.Structuralcharacteristics...........................................................................3193.1.1.Latticemateria
8、ls......................................
