Designation:D3410/D3410M−16´1StandardTestMethodforCompressivePropertiesofPolymerMatrixCompositeMaterialswithUnsupportedGageSectionbyShearLoading1ThisstandardisissuedunderthefixeddesignationD3410/D3410M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.ε1NOTE—EditorialcorrectionsweremadetotheadjunctinformationinMarch2021.1.Scope1.1Thistestmethoddeterminesthein-planecompressivepropertiesofpolymermatrixcompositematerialsreinforcedbyhigh-modulusfibers.Thecompositematerialformsarelimitedtocontinuous-fiberordiscontinuous-fiberreinforcedcompos-itesforwhichtheelasticpropertiesarespeciallyorthotropicwithrespecttothetestdirection.Thistestprocedureintroducesthecompressiveforceintothespecimenthroughshearatwedgegripinterfaces.ThistypeofforcetransferdiffersfromtheprocedureinTestMethodD695wherecompressiveforceistransmittedintothespecimenbyend-loading,TestMethodD6641/D6641Mwherecompressiveforceistransmittedbycombinedshearandendloading,andTestMethodD5467/D5467Mwherecompressiveforceistransmittedbysubjectingahoneycombcoresandwichbeamwiththinskinstofour-pointbending.1.2Thistestmethodisapplicabletocompositesmadefromunidirectionaltape,wet-towplacement,textile(forexample,fabric),shortfibers,orsimilarproductforms.Someproductformsmayrequiredeviationsfromthetestmethod.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundsunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.NOTE1—Additionalproceduresfordeterminingcompressivepropertiesofresin-matrixcompositesmaybefoundinTestMethodsD695,D5467/D5467M,andD6641/D...
