1、STP 995 Nonlinear Fracture Mechanics:Volume II Elastic-Plastic Fracture J.D.Landes,A.Saxena,and J.G.Merkle,editors m ASTM 1916 Race Street Philadelphia,PA 19103 Copyright by ASTM Intl(all rights reserved);Sun Dec 13 19:25:31 EST 2015Downloaded/printed byUniversity of Washington(University of Washing
2、ton)pursuant to License Agreement.No further reproductions authorized.Library of Congress Cataloging-in-Publication Data Nonlinear fracture mechanics.(STP;995)Papers presented at the Third International Symposium on Nonlinear Fracture Mechanics,held 6-8 Oct.1986 in Knoxville,Tenn.,and sponsored by A
3、STM Committee E-24 on Fracture Testing.Vol.2 edited by J.D.Landes,A.Saxena,and J.G.Merkle.ASTM publication code number(PCN)04-995002-30.Includes bibliographies and indexes.Contents:v.1.Time-dependent fracturev.2.Elastic-plastic fracture.1.Fracture mechanicsCongresses.I.Landes,J.D.(John D.).II.Saxena
4、,A.(Ashok).III.Merkle,J.G.IV.ASTM Committee E-24 on Fracture Testing.V.International Symposium on Nonlinear Fracture Mechanics(3rd;1986:Knoxville,Tenn.).VI.Series:ASTM special technical publication;995.TA409.N664 1988 620.1126 88-38147 ISBN 0-8031-1174-6(v.1)ISBN 0-8031-1257-2(v.2)Copyright by Ameri
5、can Society for Testing and Materials 1988 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Peer Review Policy Each paper pubhshed in this volume was evaluated by three peer reviewers.The authors addressed all of the reviewers comments to the
6、 satisfaction of both the technical editor(s)and the ASTM Committee on PubUcations.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
7、with appreciation their dedication and contribution of time and effort on behalf of ASTM.Printed in Ann Arbor,MI May 1989 Copyright by ASTM Intl(all rights reserved);Sun Dec 13 19:25:31 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No fu
8、rther reproductions authorized.William H.Pryle Dedication It was with great sorrow that we learned of the death of William Gomer Pryle on July 6,1987.Although Gomer seldom sought or received much public recognition for his work,he was a vital part of a team which advanced fracture mechanics from the
9、 earliest days.We have lost a great friend,one who enriched the lives of his fellow workers and made working in fracture mechanics a constant pleasure.Gomer grew up near Pittsburgh,Pennsylvania,and served in the U.S.Air Force from 1947 to 1951.He began his technical career at Westinghouse R&D Center
10、 in February 1952,where he continued working until his death.During most of his career at Westinghouse he was part of a widely recognized team,headed by Ed Wessel,which made numerous contributions to the advancement of testing,analysis,and applications of fracture mechanics technology.Although his w
11、ork is reflected in many places in the fracture mechanics liter-ature,his contributions are not always readily apparent.The work was presented anony-mously and can be recognized only by those associates of his who remember his contributions.This is most notable in fracture toughness test standards w
12、here,beginning with the devel-opment of the compact specimen and the ASTM E 399 Kx test standard,his work on specimen design,machining,and precracking technique played a vital role in making this standard a model for those which would follow.He played a similar role in some of the newer fracture mec
13、hanics test standards,contributing to ASTM Standards E 647,E 813,and E 1152.Some of his important contributions include:Development of fracture mechanics specimen designs with emphasis on machin-ing practices,including dimensions and tolerances.Copyright by ASTM Intl(all rights reserved);Sun Dec 13
14、19:25:31 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Development of testing and analysis techniques,including instrumentation,data re-cording,analysis,and reporting.Development of modern precracking
15、techniques,taking the process from the earliest approach of thermal-mechanical induced cracking to the modern computer-controlled fatigue precracking techniques.Development of precracking techniques for difficult materials,including beryllium alloys and ceramics.Development of systems for identifyin
16、g specimen size and orientation.Development of modern specimen inventory control methods.Author or coauthor of 36 fracture mechanics papers and reports,most notably ones relating to the development of the compact specimen and the testing of large(12T)compact specimens.Besides his technical career,Gomer was dedicated to his wife Barbara,his three children Lynn,John,and Barbie,and his granddaughter Debbie.He also showed his concern for people through his association with the fracture mechanics fam
