Designation:D5450/D5450M−22StandardTestMethodforTransverseTensilePropertiesofHoopWoundPolymerMatrixCompositeCylinders1ThisstandardisissuedunderthefixeddesignationD5450/D5450M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethoddeterminesthetransversetensileprop-ertiesofwoundpolymermatrixcompositesreinforcedbyhigh-moduluscontinuousfibers.Itdescribestestingofhoopwound(90°)cylindersinaxialtensionfordeterminationoftransversetensileproperties.1.2Thetechnicalcontentofthistestmethodhasbeenstablesince1993withoutsignificantobjectionfromitsstakeholders.Asthereislimitedtechnicalsupportforthemaintenanceofthistestmethod,changessincethatdatehavebeenlimitedtoitemsrequiredtoretainconsistencywithotherASTMD30Commit-teestandards,includingeditorialchangesandincorporationofupdatedguidanceonspecimenpreconditioningandenviron-mentaltesting.Thetestmethod,therefore,shouldnotbeconsideredtoincludeanysignificantchangesinapproachandpracticesince1993.Futuremaintenanceofthetestmethodwillonlybeinresponsetospecificrequestsandperformedonlyastechnicalsupportallows.1.3Units—ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequiva-lents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.3.1Withinthetext,theinch-poundunitsareshowninbrackets.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinacco...
