1、CRACKS AND FRACTURE 1 Proceedings of the Ninth National Symposium on Fracture Mechanics A symposium sponsored by Committee E-24 on Fracture Testing of Metals AMERICAN SOCIETY FOR TESTING AND AAATERIALS University of Pittsburgh,Pittsburgh,Pa.,25-27 Aug.1975 ASTM SPECIAL TECHNICAL PUBLICATION 601 J.L.
2、Swedlow and M.L.Williams,symposium co-chairmen List price$51.75 04-601000-30 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:20:25 EST 2015Downloaded/printed byUniversity of Washington(University of Washingto
3、n)pursuant to License Agreement.No further reproductions authorized.BY AMERICAN SOCIETY FOR TESTING AND MATERIALS 1976 Library of Congress Catalog Card Number:76-1712 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore,iVId.
4、June 1976 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:20:25 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Joseph A.Kies,1906-1975 Dedication It was with great sorrow that those concerned
5、with the organization of the Ninth National Symposium on Fracture Mechanics learned that the community of fracture specialists would never again benefit from the wit and wisdom of Joe Kies,one of the pioneers of practical fracture mechanics,highly respected through the world,and held in great affect
6、ion by those fortunate enough to know him well.The Officers of ASTM Committee E-24 on Fracture Testing of Metals,the members of the Executive Subcommittee,and the members of the National Symposia Task Group of the Executive Committee,all agreed that it would be most Copyright by ASTM Intl(all rights
7、 reserved);Mon Dec 21 11:20:25 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.appropriate to dedicate these Proceedings to Joe in recognition that much of our present work rests on foundations that he h
8、elped to lay.In 1959 the progenitor of ASTM Committee E-24 was established to deal with Vanguard and Polaris motor case problems.Surely standardized tests for the case materials were needed;meantime,the analysis and remedial prescription of the disconcertingly fre-quent proof test failures had to pr
9、oceed with deliber-ate haste.The original master of fracture failure analysis,Kies,got on with this task.With characteris-tic enthusiasm and sagacity,he would examine the remains,interrogate witnesses,investigate the background,analyze,and report;dozens upon dozens of cases were handled.It was this
10、wealth of experience that set practical objectives to be met by the ASTM test methods of Committee E-24.This was the Kies con-tribution;it was vital to Committee E-24.Joe Kies became a member of ASTM in 1943 and was always an avid proponent of ASTM goals.After graduating from the University of Illin
11、ois in 1935,he became a physicist at the National Bureau of Stand-ards.In 1944,he joined the Western Regional Laboratory of the Department of Agriculture in Al-bany,California,and in 1947,the Oak Ridge Na-tional Laboratory.Taking a position at the Naval Research Laboratory in 1948,his collaboration
12、with G.R.Irwin is now recognized to have been the pioneering effort in establishing the discipline of linear elastic fracture mechanics,the primary basis of Committee E-24 activities.He was responsible for basic papers on the interpretation of fracture surface markings,a skill which prepared him for
13、 his Commit-tee E-24 essential work on the Polaris submarine missile.He was first to recognize the superior fracture toughness of warm prestretched acrylics,leading to stronger and lighter aircraft glazing materials.Rec-ognizing his contributions,the Department of the Navy bestowed its highest civil
14、ian award in 1971,the Distinguished Civilian Service Award.After his re-tirement Joe contributed generously to the American Society for Metals Handbook,Volume 9,through membership on the Committee on Use of Fractog-raphy for Fracture Analysis.At the time of his death,he was working on Volume 10 as a
15、 member of the Committee on Analysis of Brittle and Ductile Failures.Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:20:25 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword This publicat
16、ion,Cracks and Fracture,contains papers presented at the Ninth National Symposium on Fracture Mechanics which was held at the University of Pittsburgh,Pittsburgh,Pa.,25-27 Aug.1975.The Symposium was sponsored by Committee E-24 on Fracture Testing of Metals of the American Society for Testing and Materials.J.L.Swed-low,Carnegie-Mellon University,and M.L.Williams,University of Pittsburgh,presided as symposium co-chairmen.The record would not be complete without noting some of the people who lent t
