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ID:20621670
大小:324.71 KB
页数:8页
时间:2018-10-14
《ASTM C297&C297M-16 Standard Test Method for Flatwise Tensile Strength of Sandwic英文版》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
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
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