ASTM D7336/D7336M-2007 蜂窝夹芯结构堆芯材料的静能吸收性能的标准试验方法

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【英文标准名称】:StandardTestMethodforStaticEnergyAbsorptionPropertiesofHoneycombSandwichCoreMaterials
【原文标准名称】:蜂窝夹芯结构堆芯材料的静能吸收性能的标准试验方法
【标准号】:ASTMD7336/D7336M-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D30.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:corematerial;crushstress;crushstroke;flatwisecompression;honeycomb;sandwich
【摘要】:Sandwichhoneycombcorematerialsareusedextensivelyinenergyabsorptionapplications,duetotheirabilitytosustaincompressiveloadingwhilebeingcrushed.Properdesignofenergyabsorptiondevicesutilizingsandwichhoneycombcorematerialsrequiresknowledgeofthecompressivecrushstressandcrushstrokepropertiesofthehoneycombcorematerial.Theprocedurescontainedwithinthisstandardareintendedtoassessthecrushstressandcrushstrokepropertiesofthesandwichhoneycombcorematerialunderstaticcompressiveloading.Thedynamiccrushstressofthehoneycombcorematerialmayvaryfromthatmeasuredunderstaticloading,dependinguponfactorssuchashoneycombcorematerialthickness,corematerialdensity,impactvelocity,etc.Thistestmethodprovidesastandardmethodofobtainingthecompressivecrushstressandcrushstrokeforsandwichhoneycombcorematerialstructuraldesignproperties,materialspecifications,researchanddevelopmentapplications,andqualityassurance.Thistestmethodisnotintendedforuseincrushtestingofstabilizedhoneycombcorematerials(forwhichtheedgesofthehoneycombcorematerialaredippedinresintoresistlocalcrushing)orsandwichspecimens(forwhichfacingsarebondedtothehoneycombcorematerial).Factorsthatinfluencethecompressivecrushstressandcrushstrokeandshallthereforebereportedincludethefollowing:honeycombcorematerial,methodsofmaterialfabrication,corematerialgeometry(nominalcellsize),corematerialdensity,specimengeometry,specimenpreparation,specimenconditioning,environmentoftesting,specimenalignment,pre-crushprocedure,pre-crushdepth,loadingprocedure,andspeedoftesting.1.1Thistestmethoddeterminesthestaticenergyabsorptionproperties(compressivecrushstressandcrushstroke)ofhoneycombsandwichcorematerials.Thesepropertiesareusuallydeterminedfordesignpurposesinadirectionnormaltotheplaneoffacingsasthehoneycombcorematerialwouldbeplacedinastructuralsandwichconstruction.1.2Permissiblecorematerialsarelimitedtothoseinhoneycombform.1.3Thistestmethodisnotintendedforuseincrushtestingofstabilizedhoneycombcorematerials(forwhichtheedgesofthehoneycombcorematerialaredippedinresintoresistlocalcrushing)orsandwichspecimens(forwhichfacingsarebondedtothehoneycombcorematerial).1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:83_140_99
【页数】:9P.;A4
【正文语种】: