ASTM C297 C297M-04(2010) Standard Test Method for Flatwise Tensile Strength of Sandwich Constructions .pdf

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1、Designation:C297/C297M–04(Reapproved2010)StandardTestMethodfor1FlatwiseTensileStrengthofSandwichConstructionsThisstandardisissuedunderthefixeddesignationC297/C297M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearof

2、lastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.ScopeD2734TestMethodsforVoidContentofReinforcedPlas-1.1

3、Thistestmethoddeterminestheflatwisetensilestrengthticsofthecore,thecore-to-facingbond,orthefacingofanD3039/D3039MTestMethodforTensilePropertiesofassembledsandwichpanel.PermissiblecorematerialformsPolymerMatrixCompositeMaterialsincludethosewithcontinuousbondingsurfaces(such

4、asbalsaD3171TestMethodsforConstituentContentofCompositewoodandfoams)aswellasthosewithdiscontinuousbondingMaterialssurfaces(suchashoneycomb).D3878TerminologyforCompositeMaterials1.2ThevaluesstatedineitherSIunitsorinch-poundunitsD5229/D5229MTestMethodforMoistureAbsorptionar

5、etoberegardedseparatelyasstandard.WithinthetextthePropertiesandEquilibriumConditioningofPolymerMa-inch-poundunitsareshowninbrackets.ThevaluesstatedintrixCompositeMaterialseachsystemarenotexactequivalents;therefore,eachsystemE4PracticesforForceVerificationofTestingMachinesm

6、ustbeusedindependentlyoftheother.CombiningvaluesE6TerminologyRelatingtoMethodsofMechanicalTestingfromthetwosystemsmayresultinnonconformancewiththeE122PracticeforCalculatingSampleSizetoEstimate,standard.WithSpecifiedPrecision,theAverageforaCharacteristic1.3Thisstandarddoesn

7、otpurporttoaddressalloftheofaLotorProcesssafetyconcerns,ifany,associatedwithitsuse.ItistheE177PracticeforUseoftheTermsPrecisionandBiasinresponsibilityoftheuserofthisstandardtoestablishappro-ASTMTestMethodspriatesafetyandhealthpracticesanddeterminetheapplica-E456Terminolog

8、yRelatingtoQualityandStatisticsbilityofregulatorylimitationspriortouse.E1309GuideforIdentificatio