_STP_1072-1990.pdf

STP 1072 Charpy Impact Test:Factors and Variables John M.Holt,editor ASTM 1916 Race Street Philadelphia,PA 19103 Copyright by ASTM Intl(all rights reserved);Tue Dec 15 12:59:52 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.ASTM Publication Code Number(PCN):04-010720-23 ISBN:0-8031-1295-5 Library of Congress No:90-085687 Copyright?9 1990 by the American Society for Testing and Materials.All rights reserved.No part of this publication may be reproduced,stored in a retrieval system,or transmitted,in any form or by any means,electronic,mechanical,photocopying,recording,or otherwise,without the prior written permission of the publisher NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication Peer Review Policy Each paper published in this volume was evaluated by three peer reviewers.The authors addressed all of the reviewers comments to the satisfaction of both the technical editor(s)and the ASTM Committee on Publications.The quality of the papers in this publication reflects not only the obvious efforts of the authors and the technical editor(s),but also the work of these peer reviewers.The ASTM Committee on Publications acknowledges with appreciation their dedication and contribution of time and effort on behalf of ASTM.Printed in Chelsea,Mich.December 1990 Copyright by ASTM Intl(all rights reserved);Tue Dec 15 12:59:52 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The Symposium on Charpy Impact Test:Factors and Variables,sponsored by ASTM Committee E-28 on Mechanical Testing,was held in Lake Buena Vista,Florida,on 8-9 November 1989.John M.Holt,Alpha Consultants&Engineering,served as chairman and has also edited this publication.Copyright by ASTM Intl(all rights reserved);Tue Dec 15 12:59:52 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction 1 THE PENDULUM-IMPACT MACHINE Impact Tester Compliance:Significance,Sensitivity,and Evaluation-F.PORRO,R.TRIPPODO,R.BERTOZZI,AND G.GARAGNANI 7 Comparison of Metrological Techniques for Charpy Impact Machine Verification-A.K.SCHMIEDER 20 Influence of Dimensional Parameter of an Impact Test Machine on the Results of a Test-G.REVISE 35 Factors Influencing the Accuracy of Charpy Impact Test Data-A.L.LOWE,JR.54 Effects of the Striking Edge Radius on the Charpy Impact Test-T.NANIWA,M.SH1BAIKE,M.TANAKA,H.TANI,K.SHIOTA,N.HANAWA,AND T.SHIRAISHI 67 THE SPECIMEN:NOTCHES Evaluation of Fabrication Method for Making Notches for Charpy V-Notch Impact Specimens-R.D.KOESTER AND S.E.BARCUS Quantitative Comparison and Evaluation of Various Notch Machining Methods and How They Affect ASTM E 23 and ISO R442 Testing Equipment Results-D.A.FINK The Effect of Fatigue Pre-Cracking versus V-Notching on Impact Testing of Charpy Specimens-B.A.F1ELDS,S.R.LOW I11,AND J.(3.EARLY Pre-Cracking and Strain Rate Effects on HSLA-100 Steel Charpy Specimens-S.MIKALAC,M.G.VASSILAROS,AND H.C.ROGERS 83 94 120 134 Significance of Precracking Variables for Slow-Bend Charpy Tests-C.G.1NTERRANTE AND J.J.FILLIBEN 142 Copyright by ASTM Intl(all rights reserved);Tue Dec 15 12:59:52 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.THE SPECIMEN:SIZE Specimen Size Effects in Charpy Impact Testing-D.J.ALEXANDER AND R.L.KLUEH 179 THE TEST TECHNIOUE Influence of Thermal Conditioning Media on Charpy Specimen Test Temperature-R.K.NANSTAD,R.L.SWAIN,AND R.G.BERGGREN 195 Author Index 211 Subject Index 213 Copyright by ASTM Intl(all rights reserved);Tue Dec 15 12:59:52 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.STP1072-EB/Dec.1990 Introduction INTRODUCTORY REMARKS The Symposium on Charpy Impact Test-Factors and Variables had its genesis at the second meeting of Subcommittee 4-Fracture of ISO Technical Committee 164-Mechanical Testing.Subcommittee 4 had the assignment of reviewing ISO Recommended Practice for Verification of Pendulum Impact Testing Machines for Testing Steel,ISO Designation R442,and of revising where necessary.Although ISO,as does ASTM,requires that documents be reviewed at intervals not exceeding five years,this document had not been reviewed since it was first published in 1965 under the jurisdiction of ISO Technical Committee 17-Steel.There were 15 representatives from seven member countries and a representative from the European Community Bureau of Reference(BCR)at that meeting.The members of ISO technical committees are the national standard writing bodies-not individuals;national-standards writing bodies are organizations such as BSI,AFNOR,SIS,etc.Beca