_STP_1409-2002.pdf

STP 1409 Fracture Resistance Testing of Monolithic and Composite Brittle Materials J.A.Salem,G.D.Quinn,and M.G.Jenkins,editors ASTM Stock Number:STPI409 ASTM International 100 Barr Harbor Drive PO Box C700 West Conshohocken,PA 19428-2959 Printed in the U.S.A.Library of Congress Cataloging-in-Publication Data Fracture resistance testing of monolithic and composite brittle materials/J.A.Salem,G.D.Quinn,and M.G.Jenkins,editors.p.cm.ASTM stock number:.STP1409.Includes bibliographical references and index.ISBN 0-8031-2880-0 1.Brittleness-Congresses.2.Fracture mechanics-Congresses.L Salem,J.A.(Jonathan A.),1960-IL Quinn,G.D.(George D.)II1.Jenkins,Michael G.,1958-TA418.16.F73 2002 620.1 t 26-1c21 2001053953 Copyright?9 2002 ASTM International,West Conshohocken,PA.All rights reserved.This material may not be reproduced or copied,in whole or in part,in any printed,mechanical,electronic,film,or other distribution and storage media,without the written consent of the publisher.Photocopy Rights Authorization to photocopy items for internal,personal,or educational classroom use,or the internal,personal,or educational classroom use of specific clients,is granted by the American Society for Testing and Materials(ASTM)provided that the appropriate fee is paid to the Copyright Clearance Center,222 Rosewood Drive,Danvers,MA 01923;Tel:978-750-8400;online:http:/ Review Policy Each paper published in this volume was evaluated by two peer reviewers and at least one editor.The authors addressed all of the reviewers comments to the satisfaction of both the technical editor(s)and the ASTM Committee on Publications.To make technical information available as quickly as possible,the peer-reviewed papers in this publication were prepared camera-ready as submitted by the authors.The quaii 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 the peer reviewers.In keeping with long-standing publication practices,ASTM maintains the anonymity of the peer reviewers.The ASTM Committee on Publications acknowledges with appreciation their dedication and contribution of time and effort on behalf of ASTM International.Pdnted in Brkgeport,NJ January 20 Foreword This publication,Fracture Resistance Testing of Monolithic and Composite Brittle Materials,con-tains papers presented at the symposium of the same name held in Orlando,Florida,on 14 November 2000.The symposium was sponsored by ASTM Committee C28 on Advanced Ceramics.The sym-posium chairman was Jonathan A.Salem,NASA Glenn Research Center at Lewis Field,and the sym-posium co-chairmen were George D.Quinn,National Institute for Standard and Technology,and Michael G.Jenkins,University of Washington.Contents Overview PLENARY SESSION Fracture Mechanics of Brittle Ceramics-30 Years of Progrem-R.C.BRADT vii IMPLICATIONS FOR DESIGN AND TESTING Failure from Large Grains in PolycrystaBine Ceramics:Transitions in Fracture Toughness-s.FREIMAN Stresses in Ceramic Plates Subjected to Loading Between Concentric Rings-L.M.POWERS,J.A.SALEM,AND A.S.WEAVER 17 30 FRACTURE TOUGHNESS STANDARDIZATION Development,Verification,and Implementation of a National Full-Consensns Fracture Toughness Test Method Standard for Advanced Ceramics-M.G.mNKINS,J.A.SALEM,O.D.QUINN,AND L BAR-GN Does Anyone Know the Real Fracture Toughness?SRM 2100:The Worlds First Ceramic Fracture Toughness Reference Material-O.D.QUtNN,K.R.J.GETIINGS,J.A.SALEM,AND J.J.SWAB Fracture Toughness of Ceramics using the SEVNB Method:From a Preliminary Study to a Standard Test Method-J.J.KOBLER The Fracture Toughness Round Robins in VAMAS:What We Have Learned-G.D.QUINN 49 76 93 107 CRACK GROWTH RESISTANCE R-Curve Measurement of Silicon Nitride Based Ceramics at Elevated Temperatures with Single Edge Notched Beam Specimens-s.SAKAGUCm 129 Crack Deflection Toughening Mechanism in Brittle Materials-ft.AWAJI,M.EBISUDANI,S.-M.CHO1,AND T.OHASHI Application of Quantitative Fractography to the Characterization of R-Curve Behavior-J.J.MECHOLSKY,JR.,T.J.HILL,AND Z.CHEN Fracture Testing of a Layered Functionally Graded Material-M.d.roLL,R.D.CARPENTER,G.H.PAULINO,Z.A.MUNIR,AND J.C.GIBELING 137 152 169 UNIQUE MATERIALS AND ENVIRONMENTAL EFFF_S Environmental and Thermal Effects on the Toughness of TiCN-Based Materials-S.GUICCIARDI,C.MELANDRI,F.MONTEVERDE,A.BELLOS1,AND G.DE PORTU Fracture Toughness Studies on Ceramics and Ceramic Particulate Composites at Different Temperatures-G.A.C,OGOTSI The Effect of Stress Rate on Slow Crack Growth Parameter Esfimates-J.A.SALEM AND M.G.JENKINS 187 199 213 Overview During the past decade,ASTM Committee C28 on Advanced Ceramics,along with its European and Japanese counterparts,has made great progress in the development of new standards for the mea-surement of fracture toughness,slow crack growth,and biaxial strength.These standards are de-signed to result in quality measurements for engineering,research,and general characterization pur-poses.They strive to