STP1250CaseStudiesforFatigueEducationRalphI.Stephens,EditorASTMPublicationCodeNumber(PCN):04-012500-30ASTM1916RaceStreetPhiladelphia,PA19103PrintedintheU.S.A.CopyrightbyASTMInt'l(allrightsreserved);SatDec2619:42:43EST2015Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.NofurtherreproductionsauthoLibraryofCongressCataloging-in-PublicationDataCasestudiesforfatigueeducation/RalphI.Stephens,editor.(STP;1250)"ASTMpublicationcodenumber(PCN)04-012500-30."Includesbibliographicalreferences.ISBN0-8031-1997-61.Materials--Fatigue--Casestudies.I.Stephens,R.I.(RalphIvan)III.Series:ASTMspecialtechnicalpublication;1250.TA418.38.C371994620.1'126--dc20II.Series.94-41520CIPCopyright�9AMERICANSOCIETYFORTESTINGANDMATERIALS,Philadelphia,PA.Allrightsreserved.Thismaterialmaynotbereproducedorcopied,inwholeorinpart,inanyprinted,mechanical,electronic,film,orotherdistributionandstoragemedia,withoutthewrittenconsentofthepublisher.PhotocopyRightsAuthorizationtophotocopyitemsforinternalorpersonaluse,ortheinternalorpersonaluseofspecificclients,isgrantedbytheAMERICANSOCIETYFORTESTINGANDMATERIALSforusersregisteredwiththeCopyrightClearanceCenter(CCC)TransactionalReportingService,providedthatthebasefeeof$2.50percopy,plus$0.50perpageispaiddirectlytoCCC,222RosewoodDr.,Danvers,MA01923;Phone:(508)750-8400;Fax:(508)750-4744,ForthoseorganizationsthathavebeengrantedaphotocopylicensebyCCC,aseparatesystemofpaymenthasbeenar-ranged.ThefeecodeforusersoftheTransactionalReportingServiceis0-8031-1997-6/94$2.50+.50.PeerReviewPolicyEachpaperpublishedinthisvolumewasevaluatedbythreepeerreviewers.Theauthorsaddressedallofthereviewers'commentstothesatisfactionofboththetechnicaleditorandtheASTMCommitteeonPublications.Thequalityofthepapersinthispublicationreflectsnotonlytheobviouseffortsoftheauthorsandthetechnicaleditor,butalsotheworkofthesepeerreviewers.TheASTMCommitteeonPublicationsacknowledgeswithappreciationtheirdedicationandcontributiontotimeandeffortor,behalfofASTM.Printe...