【英文标准名称】:StandardTestMethodforShearPropertiesofCompositeMaterialsbytheV-NotchedBeamMethod
【原文标准名称】:用V形切口梁法测定复合材料剪切性能的标准试验方法
【标准号】:ASTMD5379/D5379M-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】:D30.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compositematerials;in-planeshear;interlaminarshear;shearmodulus;shearproperties;shearstrength;sheartesting
【摘要】:Thistestmethodisdesignedtoproduceshearpropertydataformaterialspecifications,researchanddevelopment,qualityassurance,andstructuraldesignandanalysis.Eitherin-planeorinterlaminarshearpropertiesmaybeevaluated,dependingupontheorientationofthematerialcoordinatesystemrelativetotheloadingaxis.Factorsthatinfluencetheshearresponseandshouldthereforebereportedincludethefollowing:material,methodsofmaterialpreparationandlay-up,specimenstackingsequence,specimenpreparation,specimenconditioning,environmentoftesting,specimenalignmentandgripping,speedoftesting,timeattemperature,voidcontent,andvolumepercentreinforcement.Inanisotropicmaterials,propertiesmaybeobtainedinanyofthesixpossibleshearplanesbyorientingthetestingplaneofthespecimenwiththedesiredmaterialplane(1-2or2-1,1-3or3-1,2-3or3-2).Onlyasingleshearplanemaybeevaluatedforanygivenspecimen.Properties,inthetestdirection,whichmaybeobtainedfromthistestmethod,includethefollowing:5.2.1Shearstress/strainresponse,5.2.2Ultimatestrength,5.2.3Ultimatestrain,5.2.4Shearchordmodulusofelasticity,and5.2.5Transitionstrain.1.1Thistestmethodcoverstheshearpropertiesofcompositematerialsreinforcedbyhigh-modulusfibers.Thecompositematerialsarelimitedtocontinuous-fiberordiscontinuous-fiber-reinforcedcompositesinthefollowingmaterialforms:1.1.1Laminatescomposedonlyofunidirectionalfibrouslaminae,withthefiberdirectionorientedeitherparallelorperpendiculartotheloadingaxis.1.1.2Laminatescomposedonlyofwovenfabricfilamentarylaminaewiththewarpdirectionorientedeitherparallelorperpendiculartotheloadingaxis.1.1.3Laminatescomposedonlyofunidirectionalfibrouslaminae,containingequalnumbersofpliesorientedat0and90inabalancedandsymmetricstackingsequence,withthe0directionorientedeitherparallelorperpendiculartotheloadingaxis.1.1.4Short-fiber-reinforcedcompositeswithamajorityofthefibersbeingrandomlydistributed.Note1Thissheartestconceptwasoriginallydevelopedwithoutreferencetofiberdirectionforuseonisotropicmaterialssuchasmetalsorceramics.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_140_20
【页数】:13P.;A4
【正文语种】:英语