_STP_176-1955.pdf

Copyright by ASTM Intl(all rights reserved);Tue Apr 12 02:07:06 EDT 2016Downloaded/printed byPetrofac(Petrofac)pursuant to License Agreement.No further reproductions authorized.SYMPOSIUM ONIMPACT TESTINGPresented at theFIFTY-EIGHTH ANNUAL MEETINGAMERICAN SOCIETY FOR TESTING MATERIALSAtlantic City,N.J.,June 27 1955ASTM Special Technical Publication No.176Published by theAMERICAN SOCIETY FOR TESTING MATERIALS1916 Race St.,Philadelphia 3,Pa.Copyright by ASTM Intl(all rights reserved);Tue Apr 12 02:07:06 EDT 2016Downloaded/printed byPetrofac(Petrofac)pursuant to License Agreement.No further reproductions authorized.This page intentionally left blank Copyright by ASTM Intl(all rights reserved);Tue Apr 12 02:07:06 EDT 2016Downloaded/printed byPetrofac(Petrofac)pursuant to License Agreement.No further reproductions authorized.FOREWORDThis publication is based on a Symposium on Impact Testing that washeld at the Fifty-eighth Annual Meeting of the American Society for TestingMaterials in Atlantic City,N.J.,June 27,1955 comprising the First andSecond sessions.The symposium was sponsored by Committee E-l onMethods of Testing with Mr.F.G.Tatnall,Baldwin-Lima-Hamilton Corp.,Philadelphia,Pa.,serving as Symposium chairman.Mr.Tatnall also presided at the Second session with H.L.Fry,BethlehemSteel Co.,Inc.,Bethlehem,Pa.,as secretary and Mr.W.W.Werring,BellTelephone Laboratories,Inc.,New York,N.Y.,presided at the.Firstsession with W.H.Mayo,U.S.Steel Corp.,Pittsburgh,Pa.,as secretary.In addition to the papers presented as a part of the Symposium,five otherpapers,being appropriate to the general theme of the Symposium,have beenincluded on Effects of Manganese and Aluminum Contents on TransitionTemperature of Normalized Nickel Steel,by T.N.Armstrong,and O.0.Miller,International Nickel Co.;Low-Temperature Transition of Normal-ized CarbonManganese Steel,by T.N.Armstrong International NickelCo.and W.L.Warner,Watertown Arsenal;Effect of Specimen Widthon the Notched Bar Impact Properties of Quenched-and-Tempered andNormalized Steels,by R.S.Zeno,General Electric Co.;Stress-Strain Rela-tionships in Yarns Subjected to Rapid Impact Loading,by Herbert F.Schiefer,Jack C.Smith,Frank McCrackin,and W.K.Stone,NationalBureau of Standards;and Shock Testing with the Rocket-Powered Pendu-lum,by R.W.Hager,Sandia Corp.Copyright by ASTM Intl(all rights reserved);Tue Apr 12 02:07:06 EDT 2016Downloaded/printed byPetrofac(Petrofac)pursuant to License Agreement.No further reproductions authorized.NOTE.The Society is not responsible,as a body,for the statementsand opinions advanced in this publication.Copyright by ASTM Intl(all rights reserved);Tue Apr 12 02:07:06 EDT 2016Downloaded/printed byPetrofac(Petrofac)pursuant to License Agreement.No further reproductions authorized.CONTENTSIntroductionNotched-Bar TestingTheory and PracticeS.L.HoytDiscussionTransition Behavior in V-Notch Charpy Slow-Bend TestsCarl E.HartbowerDiscussionEffects of Manganese and Aluminum Contents on Transition Temperature of Normal-ized Nickel SteelT.N.Armstrong and O.O.MillerLow-Temperature Transition of Normalized Carbon-Manganese SteelsT.N.Armstrong and W.L.WarnerEffect of Specimen Width on the Notched Bar Impact Properties of Quenched-And-Tempered and Normalized SteelsR.S.Zeno.Reproducibility of Charpy Impact TestDavid E.DriscollDiscussionAutomatic Impact Testing From Room Temperature to 236 CThomasS.DeSistoThe Influence of Pendulum Flexibilities on Impact Energy MeasurementsJosephI.BluhmDiscussionThe Impact Tube:A New Experimental Technique for Applying Impulse LoadsGeorge GerardDiscussionLongitudinal Impact Tests of Long Bars With A Slingshot MachineW.Rambergand L.K.IrwinDiscussionStress-Strain Relationships in Yarns Subjected to Rapid Impact LoadingHerbertF.Schiefer,Jack C.Smith,Frank L.McCrackin and W.K.StoneShock Tester for Shipping ContainersW.H.Cross and Max McWhirterShock Testing with the Rocket-Powered PendulumR.W.Hager.Properties of Concrete at High Rates of LoadingD.Watstein.Discussion.PAGE1371023254059707576849394110111125126141149156170 Copyright by ASTM Intl(all rights reserved);Tue Apr 12 02:07:06 EDT 2016Downloaded/printed byPetrofac(Petrofac)pursuant to License Agreement.No further reproductions authorized.This page intentionally left blank Copyright by ASTM Intl(all rights reserved);Tue Apr 12 02:07:06 EDT 2016Downloaded/printed byPetrofac(Petrofac)pursuant to License Agreement.No further reproductions authorized.Over the years there have been manydiscussions of the technique and signifi-cance of the impact test,including severalformal symposia.The last Impact Symposium was heldin 1938.Much technical developmentsince that time has been attributed toinformation contained in those sympo-sium papers.Now seventeen years later another Impact Symposium steps into a field thatis already brimming with interest andactivity.Some phases of this field carrythe designation Environmental Test-ing.Along this line,it was suggested sometime ago by members of the ImpactCommitt