_STP_855-1984.pdf

CHEVRON-NOTCHED SPECIMENS:TESTING AND STRESS ANALYSIS A symposium sponsored by ASTM Committee E-24 on Fracture Testing Louisville,Ky.,21 April 1983 ASTM SPECIAL TECHNICAL PUBLICATION 855 J.H.Undenwood,Army Armament R&D Center,S.W.Freiman,National Bureau of Standards,and F.I.Baratta,Army Materials and Mechanics Research Center,editors ASTM Publication Code Number(PCN)04-855000-30 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:16:27 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Library of Congress Cataloging in Publication Data Chevron-notched specimens,testing and stress analysis.(ASTM special technical publication;855)Papers presented at the Symposium on Chevron-notched Specimens:Testing and Stress Analysis.Includes bibliographies and index.1.Notched bar testingCongresses.2.Strains and stressesCongresses.I.Underwood,J.H.II.Freiman,S.W.m.Baratta,F.I.IV.ASTM Committee E-24 on Fracmre Testing.V.Symposium on Chevron-notched Specimens:Testing and Stress Analysis(1983;Louisville,Ky.)VI.Series.TA418.17.C48 1984 620.1126 84-70336 ISBN 0-8031-0401-4 Copyright by AMERICAN SOCIETY FOR TESTING AND MATERIALS 1984 Library of Congress Catalog Card Number:84-70336 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore.Mti.(b)November 1984 Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:16:27 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword This publication,Chevron-Notched Specimens:Testing and Stress Analysis,contains papers presented at tiie Symposium on Chevron-Notched Specimens:Testing and Stress Analysis which was held 21 April 1983 at Louisville,Ken-tucky.ASTMs Committee E-24 on Fracture Testing sponsored the symposium.J.H.Underwood,Army Armament R&D Center,S.W.Freiman,National Bureau of Standards,and F.I.Baratta,Army Materials and Mechanics Research Center,served as symposium chairmen and editors of this publication.The symposium chairmen are pleased to credit D.P.Wilhem,Northrop Corp.,for proposing and initiating this symposium.Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:16:27 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publication Probabilistic Fracture Mechanics and Fatigue Methods:Applications for Struc-tural Design and Maintenance,STP 798(1983),04-798000-30 Fracture Mechanics:Fourteenth Symposium,Volume I:Theory and Analysis;Volume II:Testing and Application,STP 791(1983),04-791000-30 Fracture Mechanics for Ceramics,Rocks,and Concrete,STP 745(1981),04-745000-30 Fractography and Materials Science,STP 733(1981),04-733000-30 Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:16:27 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.A Note of Appreciation to Reviewers The quality of the papers that appear in this publication reflects not only the obvious efforts of the authors but also the unheralded,though essential,work of the reviewers.On behalf of ASTM we acknowledge with appreciation their dedication to high professional standards and their sacrifice of time and effort.ASTM Committee on Publications Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:16:27 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.ASTM Editorial Staff Janet R.Schroeder Kathleen A.Greene Rosemary Horstman Helen M.Hoersch Helen P.Mahy Allan S.Kleinberg Susan L.Gebremedhin Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:16:27 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction 1 STRESS ANALYSIS A Review of Clievron-Notched Fracture Specimens J.C.NEWMAN,JR.5 Three-Dimensional Finite-Element Analysis of Chevron-Notched Fracture Specunensi.s.RAJU AND J.C.NEWMAN,JR.32 Three-Dimensional Finite and Boundary Element Calibration of the Short-Rod SpecimenA.R.INGRAFFEA,R.PERUCCHIO,T.-Y.HAN,W.H.GERSTLE,AND Y.-P.HUANG 49 Three-Dimensional Analysis of Short-Bar Chevron-Notched Specimens by the Boundary Integral MethodA.MENDELSON AND L.J.GHOSN 69 Photoelastic Calibration of the Short-Bar Chevron-Notched SpecimenR.J.SANFORD AND R.CHONA 81 Comparison of Analytical and Experimental Stress-Intensity Coefficients for Chevron V-Notched Three-Point Bend Specimensi.BAR-ON,F.R.TULER,AND i.ROMAN 98 TEST METHOD DEVELOPMENT Specimen Size Effects in Short-Rod Fracture Toughness MeasurementsL.M.BARKER 117 A Computer-Assisted Technique for Measuring Ki-V Relationships R.T.COYLE AND M.L.BUHL,J