Designation:E111−04(Reapproved2010)StandardTestMethodforYoung’sModulus,TangentModulus,andChordModulus1ThisstandardisissuedunderthefixeddesignationE111;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethod2coversthedeterminationofYoung’smodulus,tangentmodulus,andchordmodulusofstructuralmaterials.Thistestmethodislimitedtomaterialsinwhichandtotemperaturesandstressesatwhichcreepisnegligiblecomparedtothestrainproducedimmediatelyuponloadingandtoelasticbehavior.1.2Becauseofexperimentalproblemsassociatedwiththeestablishmentoftheoriginofthestress-straincurvedescribedin8.1,thedeterminationoftheinitialtangentmodulus(thatis,theslopeofthestress-straincurveattheorigin)andthesecantmodulusareoutsidethescopeofthistestmethod.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatoryrequirementspriortouse.2.ReferencedDocuments2.1ASTMStandards:3E4PracticesforForceVerificationofTestingMachinesE6TerminologyRelatingtoMethodsofMechanicalTestingE8TestMethodsforTensionTestingofMetallicMaterialsE9TestMethodsofCompressionTestingofMetallicMate-rialsatRoomTemperatureE21TestMethodsforElevatedTemperatureTensionTestsofMetallicMaterialsE83PracticeforVerificationandClassificationofExten-someterSystemsE231MethodforStaticDeterminationofYoung’sModulusofMetalsatLowandElevatedTemperatures(Withdrawn1985)4E1012PracticeforVerificationofTestingFrameandSpeci-menAlignmentUnderTensileandCompressiveAxialForceApplication2.2GeneralConsiderations—Whilec...
