Designation:D7332/D7332M−22StandardTestMethodforMeasuringtheFastenerPull-ThroughResistanceofaFiber-ReinforcedPolymerMatrixComposite1ThisstandardisissuedunderthefixeddesignationD7332/D7332M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddeterminesthefastenerpull-throughresistanceofmultidirectionalpolymermatrixcompositesrein-forcedbyhigh-modulusfibers.Fastenerpull-throughresis-tanceischaracterizedbytheforce-versus-displacementre-sponseexhibitedwhenamechanicalfastenerispulledthroughacompositeplate,withtheforceappliedperpendiculartotheplaneoftheplate.Thecompositematerialformsarelimitedtocontinuous-fiberordiscontinuous-fiber(tapeorfabric,orboth)reinforcedcompositesforwhichthelaminateissymmetricandbalancedwithrespecttothetestdirection.Therangeofacceptabletestlaminatesandthicknessesisdefinedin8.2.1.2Twotestproceduresandconfigurationsareprovided.Thefirst,ProcedureA,issuitableforscreeningandfastenerdevelopmentpurposes.Thesecond,ProcedureB,isconfiguration-dependentandissuitableforestablishingdesignvalues.Bothprocedurescanbeusedtoperformcomparativeevaluationsofcandidatefasteners/fastenersystemdesigns.1.3Thespecimensdescribedhereinmaynotberepresenta-tiveofactualjointswhichmaycontainoneormorefreeedgesadjacenttothefastener,ormaycontainmultiplefastenersthatcanchangetheactualboundaryconditions.1.4ThistestmethodisconsistentwiththerecommendationsofCMH-17,whichdescribesthedesirableattributesofafastenerpull-throughtestmethod.1.5Units—ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequiva-lents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.5.1Withinthetext,theinch-poundunitsaresho...
