【英文标准名称】:StandardTestMethodforDensityofSandwichCoreMaterials
【原文标准名称】:夹层结构建筑物用芯材密度的试验方法
【标准号】:ASTMC271/C271M-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【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】:core;density;sandwich
【摘要】:Densityisafundamentalphysicalpropertythatcanbeusedinconjunctionwithotherpropertiestocharacterizethesandwichcore.Mostsandwichcorestructuralproperties,suchasstrengthandstiffness,areproportionaltothedensity.Thistestmethodprovidesastandardmethodofobtainingsandwichcoredensitydatafordesignproperties,materialspecifications,researchanddevelopmentapplications,andqualityassurance.Factorsthatinfluencethedensityandshallthereforebereportedincludethefollowing:corematerial,methodsofmaterialfabrication,coregeometry(nominalcellsize),specimengeometry,specimenpreparation,methodsofweightanddimensionalmeasurement,specimenconditioning,andmoisturecontentduringweightanddimensionalmeasurements.1.1Thistestmethodcoversthedeterminationofthedensityofsandwichconstructioncorematerials.Permissiblecorematerialformsincludethosewithcontinuousbondingsurfaces(suchasbalsawoodandfoams)aswellasthosewithdiscontinuousbondingsurfaces(suchashoneycomb).1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q23
【国际标准分类号】:83_120
【页数】:4P.;A4
【正文语种】:英语