IMPACTTESTINGOFMETALSAsymposiumpresentedattheSeventy-secondAnnualMeetingAMERICANSOCIETYFORTESTINGANDMATERIALSAtlanticCity,N.J.,22-27June1969ASTMSPECIALTECHNICALPUBLICATION466ITIAMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceStreet,Philadelphia,Pa.19103CopyrightbyASTMInt'l(allrightsreserved);SatDec509:47:03EST2015Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.Nofurtherreproductionsauthorized.(~)BYAMERICANSOCIETYFORTESTINGAND~IATERIALS1970LibraryofCongressCatalogCardNumber:74-97731ISBN0-8031-0038-8NOTETheSocietyisnotresponsible,asabody,forthestatementsandopinionsadvancedinthispublication.PrimedinYork,Pa.March1970SecondPriming,Ba[timore,Md.October1984CopyrightbyASTMInt'l(allrightsreserved);SatDec509:47:03EST2015Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.Nofurtherreproductionsauthorized.ForewordThepapersintheSymposiumonImpactTestingof.~{etalsweregivenattheSeventy-secondAnnual5IeetingoftheAmericanSocietyforTestingand5IateralsheldinAtlanticCity,N.J.,22-27June1969.ThesponsorsofthissymposiumwereCommitteeE-1on5IethodsofTesting,Subcommittee7onImpactTesting,andCommitteeE-24onFractureTestingof5Ietals.D.E.Driscoll,Army5IaterialsandMe-chanicsResearchCenter,presidedassymposiumchairman.CopyrightbyASTMInt'l(allrightsreserved);SatDec509:47:03EST2015Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.NofurtherreproductionsaRelatedASTMPublicationsEvaluationofWearTesting,STP446(1969)CopyrightbyASTMInt'l(allrightsreserved);SatDec509:47:03EST2015Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.Nofurtherreproductionsauthorized.ContentsIntroduction..................1TheRoleofImpactTestinginCharacterizingtheToughnessofMate-rials--w.T.~ATrHEWS.............3EffectofStrengthandThicknessonNotchDuctility--J.mGROSS.21Discussion..................50AnEvaluationoftheCharpyImpactTest--rHARSEMANDH.W'INTERMARK53TheCharpyImpa...
