Designation:D5992−96(Reapproved2011)StandardGuideforDynamicTestingofVulcanizedRubberandRubber-LikeMaterialsUsingVibratoryMethods1ThisstandardisissuedunderthefixeddesignationD5992;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversdynamictestingofvulcanizedrubberandrubber-like(bothhereinaftertermed“rubber”or“elasto-meric”)materialsandproducts,leadingfromthedefinitionsoftermsused,throughthebasicmathematicsandsymbols,tothemeasurementofstiffnessanddamping,andfinallythroughtheuseofspecimengeometryandflexingmethod,tothemeasure-mentofdynamicmodulus.1.2Thisguidedescribesavarietyofvibratorymethodsfordeterminingdynamicproperties,presentingthemasoptions,notasrequirements.Themethodsinvolvefreeresonantvibration,andforcedresonantandnonresonantvibration.Inthelattertwocasestheinputisassumedtobesinusoidal.1.3Whilethemethodsareprimarilyforthemeasurementofmodulus,amaterialproperty,theymayinmanycasesbeappliedtomeasurementsofthepropertiesoffull-scaleprod-ucts.1.4Themethodsdescribedareprimarilyusefulovertherangeoftemperaturesfrom−70°Cto+200°C(−100°Fto+400°F)andforfrequenciesfrom0.01to100Hz.Notallinstrumentsandmethodswillaccommodatetheentireranges.1.5Whenemployedforthemeasurementofdynamicmodulus,themethodsareintendedformaterialshavingcom-plexmoduliintherangefrom100to100000kPa(15to15000psi)anddampinganglesfrom0to90°.Notallinstrumentsandmethodswillaccommodatetheentireranges.1.6Bothtranslationalandrotationalmethodsaredescribed.Tosimplifygenericdescriptions,theterminologyoftranslationisused.Thesubjectmatterappliesequallytotherotationalmode,substituting“torque”and“angulardeflection”for“force”and“displacement.”1.7Thisguideisdividedintosections,someofwhichinclude:SectionTerminologyandSymbols3FactorsInfluencingDynamicMeasurement7TestMethodsandSpec...
