ASTM C297&ampamp；C297M-16 Standard Test Method for Flatwise Tensile Strength of Sandwic英文版

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1、Designation:C297/C297M−16StandardTestMethodfor1FlatwiseTensileStrengthofSandwichConstructionsThisstandardisissuedunderthefixeddesignationC297/C297M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastre

2、vision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.ScopemerMatrixCompositeMaterialsD3171TestMethod

3、sforConstituentContentofComposite1.1ThistestmethoddeterminestheflatwisetensilestrengthMaterialsofthecore,thecore-to-facingbond,orthefacingofanD3878TerminologyforCompositeMaterialsassembledsandwichpanel.PermissiblecorematerialformsD5229/D5229MTestMethodforMoisture

4、AbsorptionProp-includethosewithcontinuousbondingsurfaces(suchasbalsaertiesandEquilibriumConditioningofPolymerMatrixwoodandfoams)aswellasthosewithdiscontinuousbondingCompositeMaterialssurfaces(suchashoneycomb).E4PracticesforForceVerificationofTestingMachines1.2The

5、valuesstatedineitherSIunitsorinch-poundunitsE6TerminologyRelatingtoMethodsofMechanicalTestingaretoberegardedseparatelyasstandard.ThevaluesstatedinE122PracticeforCalculatingSampleSizetoEstimate,Witheachsystemarenotexactequivalents;therefore,eachsystemSpecifiedPrec

6、ision,theAverageforaCharacteristicofamustbeusedindependentlyoftheother.CombiningvaluesLotorProcessfromthetwosystemsmayresultinnonconformancewiththeE177PracticeforUseoftheTermsPrecisionandBiasinstandard.ASTMTestMethods1.2.1Withinthetexttheinch-poundunitsareshowni

7、nE456TerminologyRelatingtoQualityandStatisticsbrackets.1.3Thisstandarddoesnotpurporttoaddressallofthe3.Terminologysafetyconcerns,ifany,associatedwithitsuse.Itisthe3.1Definitions—TerminologyD3878definestermsrelatingresponsibilityoftheuserofthisstandardtoestablishap

8、pro-tohigh-modulusfibersandtheircomposites,aswellastermspriatesafetyandhealthpracticesanddeterminetheapplica-relatingtosandwichconstructions.TerminologyD883definesbilit