Designation:D5766/D5766M−11(Reapproved2018)StandardTestMethodforOpen-HoleTensileStrengthofPolymerMatrixCompositeLaminates1ThisstandardisissuedunderthefixeddesignationD5766/D5766M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddeterminestheopen-holetensilestrengthofmultidirectionalpolymermatrixcompositelami-natesreinforcedbyhigh-modulusfibers.Thecompositemate-rialformsarelimitedtocontinuous-fiberordiscontinuous-fiber(tapeorfabric,orboth)reinforcedcompositesinwhichthelaminateisbalancedandsymmetricwithrespecttothetestdirection.Therangeofacceptabletestlaminatesandthick-nessesaredescribedin8.2.1.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.2.1Withinthetexttheinch-poundunitsareshowninbrackets.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D792TestMethodsforDensityandSpecificGravity(Rela-tiveDensity)ofPlasticsbyDisplacementD883TerminologyRelatingtoPlasticsD2584TestMethodforIgnitionLossofCuredReinforcedResinsD2734TestMethodsforVoidContentofReinforcedPlasticsD3039/D3039MTestMethodforTensileProperti...
