【英文标准名称】:StandardTestMethodforCompressivePropertiesofUnidirectionalPolymerMatrixCompositesUsingaSandwichBeam
【原文标准名称】:使用多层组合梁的单向聚合母体复合材料压缩特性的标准试验方法
【标准号】:ASTMD5467/D5467M-1997(2004)
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:D30.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compositematerials;compressivemodulusofelasticity;compressiveproperties;compressivestrength;sandwichbeam
【摘要】:Thistestmethodisdesignedtoproducemembranecompressivepropertydataformaterialspecifications,researchanddevelopment,qualityassurance,andstructuraldesignandanalysis.Factorsthatinfluencethecompressiveresponseandshouldthereforebereportedincludethefollowing:material,methodsofmaterialandspecimenpreparation,specimenconditioning,environmentoftesting,specimenalignment,speedoftesting,timeatreinforcement.Properties,inthetestdirection,thatmaybeobtainedfromthistestmethodinclude:5.1.1Ultimatecompressivestrength,5.1.2Ultimatecompressivestrain,5.1.3Compressive(linearorchord)modulusofelasticity,and5.1.4Transitionstrain.1.1Thistestmethodcoversthein-planecompressivepropertiesofpolymermatrixcompositematerialsreinforcedbyhigh-modulusfibersinasandwichbeamconfiguration.Thecompositematerialformsarelimitedtocontinuous-fibercompositesofunidirectionalorientation.Thistestprocedureintroducescompressiveloadintoathinskinbondedtoathickhoneycombcorewiththecompressiveloadtransmittedintothesamplebysubjectingthebeamtofour-pointbending.1.2Thisprocedureisapplicableprimarilytolaminatesmadefromprepregorsimilarproductforms.Otherproductformsmayrequiredeviationsfromthetestmethod.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundsunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.Note18212;AdditionalproceduresfordeterminingcompressivepropertiesofpolymermatrixcompositesmaybefoundinTestMethodsD3410/D3410MandD695.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_120
【页数】:9P.;A4
【正文语种】:英语


【英文标准名称】:WirelessFeaturesDescription:GeneralBackgroundandAssumptions
【原文标准名称】:无线电通信特征的描述:一般背景和假定
【标准号】:ANSI/TIA-664-100-A-2000
【标准状态】:作废
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:移动无线电通信系统;无线电工程;电信
【英文主题词】:Features;Mobileradiosystems;Radioengineering;Telecommunications;Wireless
【摘要】:
【中国标准分类号】:M36
【国际标准分类号】:33_070_50
【页数】:
【正文语种】:英语