作者:标准资料网 时间:2024-05-16 22:20:40   浏览:9604   来源:标准资料网

【英文标准名称】:StandardTestMethodsforPropertiesofContinuousFilamentCarbonandGraphiteFiberTows
【原文标准名称】:碳及石墨纤维束的连续长丝抗拉特性的标准试验方法
【标准号】:ASTMD4018-1999(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:D30.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Carbon;Continuousfilamentcarbon/graphitematerials;Extensometers;Graphitefibermaterials;Highmodulusfibrouscomposites;Impregnationprocedures;Loadingtests;Resinmatrixcomposites;Resins(composite);Tensileproperties/testing--aerospacemat
【摘要】:Thepropertiesdeterminedbythesetestmethodsareofvalueinmaterialspecifications,qualifications,databasegeneration,certification,research,anddevelopment.Thesetestmethodsareintendedforthetestingoffibersthathavebeenspecificallydevelopedforuseasreinforcingagentsinadvancedcompositestructures.Thetestresultsofanimpregnatedandconsolidatedfibershouldberepresentativeofthestrengthandmodulusthatareavailableinthematerialwhenusedasintended.Theperformanceoffibersindifferentresinsystemscanvarysignificantlysothatcorrelationsbetweenresultsusingthesetestmethodsandcompositetestingmaynotalwaysbeobtained.Thereproducibilityoftestresultsisdependentuponprecisecontroloveralltestconditions.Resintype,contentanddistribution,curingprocess,filamentalignment,grippinginthetestingmachine,andalignmentinthetestingmachineareofspecialimportance.Themeasuredstrengthsoffibersarenotuniquequantitiesandtestresultsarestronglydependentonthetestmethodsused.Thereforethetestmethoddescribedherewillnotnecessarilygivethesamemeanstrengthsorstandarddeviationsasthoseobtainedfromsinglefilaments,dryfibers,compositelaminas,orcompositelaminates.1.1Thesetestmethodscoverthepreparationandtensiletestingofresin-impregnatedandconsolidatedtestspecimensmadefromcontinuousfilamentcarbonandgraphiteyarns,rovings,andtowstodeterminetheirtensileproperties.1.2Thesetestmethodsalsocoverthedeterminationofthedensityandmassperunitlengthoftheyarn,roving,ortowtoprovidesupplementarydatafortensilepropertycalculation.1.3Thesetestmethodsincludeaprocedureforsizingremovaltoprovidethepreferreddesizedfibersamplesfordensitymeasurement.Thisproceduremayalsobeusedtodeterminetheweightpercentsizing.1.4Thesetestmethodsincludeaprocedurefordeterminingtheweightpercentmoistureadsorptionofcarbonorgraphitefiber.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q50
【国际标准分类号】:59_100_20
【页数】:7P.;A4
【正文语种】:英语