_STP_833-1984.pdf

PRKTURC mCCHMICS pmccnTH ivffipoiium R.J.n n P O R D.editor(jJJtMTPWS Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:06:20 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.FRACTURE MECHANICS:FIFTEENTH SYMPOSIUM Fifteenth National Symposium on Fracture Mechanics sponsored by ASTM Committee E-24 on Fracture Testing College Park,Md.,7-9 July 1982 ASTM SPECIAL TECHNICAL PUBLICATION 833 R.J.Sanford,University of Maryland,editor ASTM Publication Code Number(PCN)04-833000-30 1916 Race Street,Piiiladelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:06:20 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Library of Congress Cataloging in Publication Data National Symposium on Fracture Mechanics(15th:1982:College Park,Md.)Fracture mechanics.(ASTM special technical publication;833)ASTM publication code number(PCN 04-833000-30).Includes bibliographies and index.1.Fracture mechanicsCongresses.I.Sanford,R.J.II.ASTM Committee E-24 on Fracture Testing.III.Title.IV.Series.TA409.N38 1982 620.1126 83-72816 ISBN 0-8031-0208-9 Copyright by AMERICAN SOCIETY FOR TESTING AND MATERIALS 1984 Library of Congress Catalog Card Number:83-72816 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore,Md,(b)September 1984 Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:06:20 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Dr.George R.Irwin Dedication The dedication of this publication in honor of Dr.George R.Irwin on his 75th birthday recognizes his devel-opment of the basic theory of linear elastic fracture me-chanics and its application in solving critical problems of national importance.In particular,we honor Dr.Irwins continued counsel and guidance to ASTM Committee E-24 on Fracture Testing.We wish Dr.Irwin many years of good health and hap-piness.Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:06:20 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The 15th National Symposium on Fracture Mechanics was held at the Uni-versity of Maryland,College Park,on 7-9 July 1982.ASTM Committee E-24 on Fracture Testing was sponsor.R.J.Sanford,University of Maryland,served as symposium chairman and has edited this publication.Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:06:20 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Environment-Sensitive Fracture:Evaluation and Comparison of Test Methods,STP 821(1984),04-821000-30 Fracture Mechanics:Fourteenth SymposiumVolume I:Theory and Analysis,STP 791(1983),04-791001-30 Fracture Mechanics:Fourteenth SymposiumVolume II:Testing and Applications,STP 791(1983),04-791002-30 Fractography of Ceramic and Metal Failures,STP 827(1984),04-827000-30 Elastic-Plastic Fracture:Second Symposium,Volume IInelastic Crack Analysis,STP 803(1983),04-803001-30 Elastic-Plastic Fracture:Second Symposium,Volume II:Fracture Resistance Curves and Engineering Applications,STP 803(1983),04-803002-30 Probabilistic Fracture Mechanics and Fatigue Methods:Applications for Structural Design and Maintenance,STP 798(1983),04-798000-30 Fracture Mechanics(Thirteenth Conference),STP 743(1981),04-743000-30 Fractography and Materials Science,STP 733(1981),04-733000-30 Elastic-Plastic Fracture,STP 688(1979),04-688000-30 Copyright by ASTM Intl(all rights reserved);Wed Dec 23 18:06:20 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 18:06:20 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 18:06:20 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction to the Geoie R.Irwin Anniversary Volum