STP1074FractureMechanics:Twenty-FirstSymposiumJ.P.Gudas,J.A.Joyce,andE.M.Hackett,editorsAsTM19l6RaceStreetPhiladelphia,PA19103CopyrightbyASTMInt'l(allrightsreserved);TueDec1512:58:27EST2015Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.NofurtherreproductionsauthorizeASTMPublicationCodeNumber(PCN):04-010740-30ISBN:0-8031-1299-8ISSN:1040-3094Copyright©1990bytheAmericanSocietyforTestingandMaterials.Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofthepublisher.NOTETheSocietyisnotresponsible,asabody,forthestatementsandopinionsadvancedinthispublication.PeerReviewPolicyEachpaperpublishedinthisvolumewasevaluatedbythreepeerreviewers.Theauthorsaddressedallofthereviewers'commentstothesatisfactionofboththetechnicaleditor(s)andtheASTMCommitteeonPublications.Thequalityofthepapersinthispublicationreflectsnotonlytheobviouseffortsoftheauthorsandthetechnicaleditor(s),butalsotheworkofthesepeerreviewers.TheASTMCommitteeonPublicationsacknowledgeswithappreciationtheirdedicationandcontribu-tionoftimeandeffortonbehalfofASTM.PnntedmBaltimore,Md.August1990CopyrightbyASTMInt'l(allrightsreserved);TueDec1512:58:27EST2015Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.Nofurtherreproductionsauthorized.ForewordTheASTMTwenty-FirstNationalSymposiumonFractureMechanicswasheldinAnnapolis,Maryland,on28-30June1988.ItssponsorwasCommitteeE-24onFractureTesting.Theco-chairmenforthissymposiumwereJohnP.Gudas,DavidTaylorResearchCenter;JamesA.Joyce,UnitedStatesNavalAcademy;andEdwinM.Hackett,DavidTaylorResearchCenter.Theyhavealsoservedaseditorsofthisvolume.CopyrightbyASTMInt'l(allrightsreserved);TueDec1512:58:27EST2015Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.NofurtherreproductionsContentsIntroductionixELASTIC-PL...
