Designation:C1773−17StandardTestMethodforMonotonicAxialTensileBehaviorofContinuousFiber-ReinforcedAdvancedCeramicTubularTestSpecimensatAmbientTemperature1ThisstandardisissuedunderthefixeddesignationC1773;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddeterminestheaxialtensilestrengthandstress-strainresponseofcontinuousfiber-reinforcedad-vancedceramiccompositetubesatambienttemperatureundermonotonicloading.Thistestmethodisspecifictotubegeometries,becausefiberarchitectureandspecimengeometryfactorsareoftendistinctlydifferentincompositetubes,ascomparedtoflatplates.1.2Inthetestmethodacompositetube/cylinderwithadefinedgagesectionandaknownwallthicknessisfitted/bondedintoaloadingfixture.Thetestspecimen/fixtureassem-blyismountedinthetestingmachineandmonotonicallyloadedinuniaxialtensionatambienttemperaturewhilerecord-ingthetensileforceandthestraininthegagesection.Theaxialtensilestrengthandthefracturestrengtharedeterminedfromthemaximumappliedforceandthefractureforce.Thestrains,theproportionallimitstress,andthetensilemodulusofelasticityaredeterminedfromthestress-straindata.1.3Thistestmethodappliesprimarilytoadvancedceramicmatrixcompositetubeswithcontinuousfiberreinforcement:uni-directional(1-D,filamentwoundandtapelay-up),bi-directional(2-D,fabric/tapelay-upandweave),andtri-directional(3-D,braidandweave).Thesetypesofceramicmatrixcompositesarecomposedofawiderangeofceramicfibers(oxide,graphite,carbide,nitride,andothercomposi-tions)inawiderangeofcrystallineandamorphousceramicmatrixcompositions(oxide,carbide,nitride,carbon,graphite,andothercompositions).1.4Thistestmethoddoesnotdirectlyaddressdiscontinuousfiber-reinforced,whisker-reinforcedorparticulate-reinforcedceramics,althoughthetestmethodsdetailedheremaybeequallyapplicabletothesecomposites.1.5The...
