_STP_671-1979.pdf

SERVICE FATIGUE LOADS MONITORING,SIMULATION,AND ANALYSIS t A symposium sponsored by ASTM Committee E-9 on Fatigue AMERICAN SOCIETY FOR TESTING AND MATERIALS Atlanta,Ga.,14-15 Nov.1977 ASTM SPECIAL TECHNICAL PUBLICATION 671 P.R.AbelkIs,Douglas Aircraft Company,and J.M.Potter,Air Force Flight Dynamics Laboratory,editors List price$29.50 04-671000-30 AMERICAN SOCIETY FOR TESTING AND IVIATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:49:06 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Copyright by AMERICAN SOCIETY FOR TESTING AND MATERIALS 1979 Library of Congress Catalog Card Number:78-74559 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore,Md.April 1979 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:49:06 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The symposium on Service Fatigue Loads Monitoring,Simulation,and Analysis was presented in Atlanta,Ga.,14-15 Nov.1977.The symposium was sponsored by the American Society for Testing and Materials,through its Committee E-9 on Fatigue,in cooperation with American Society of Mechanical Engineers,Society of Automotive Engineers,and American Society of Civil Engineers.The symposium was organized by a committee consisting of:P.R.Abelkis,Douglas Aircraft Company,McDonnell Douglas Corp.,and J.M.Potter,Air Force Flight Dynamics Laboratory,cochairmen;H.Jaeckel,Ford Motor Company,SAE representative;W.Milestone,University of Wisconsin,ASME representative;B.Hillbery,Pur-due University,ASCE representative;and J.Ekvall,Lockheed-California Company;H.Fuchs,Stanford University;D.Bryan,Boeing Company,Wichita.The symposium introductory paper Random Load Analysis As Link Be-tween Operational Load Measurement and Fatigue Life Assessment,was given by O.Buxbaum,Laboratorium flir Betriebsfestigkeit,West Germany.This presentation was honored by the ASTM Committee E-9 as the best 1977 paper in E-9 sponsored activities.Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:49:06 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Corrosion Fatigue Technology,STP 642(1978),$32.00,04-642000-27 Use of Computers in the Fatigue Laboratory,STP 613(1976),$20.00,04-613000-30 Fatigue Crack Growth Under Spectrum Loads,STP 595(1976),$34.50,04-595000-30 Manual of Statistical Planning and Analysis for Fatigue Experiments,STP 588(1975),$15.00,04-588000-30 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:49:06 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.A Note of Appreciation to Reviewers This publication is made possible by the authors and,also,the unheralded efforts of the reviewers.This body of technical experts whose dedication,sacrifice of time and effort,and collective wisdom in reviewing the papers must be acknowledged.The quality level of ASTM publications is a direct function of their respected opinions.On behalf of ASTM we acknowledge with appreciation their contribution.ASTM Committee on Publications Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:49:06 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Editorial Staff Jane B.Wheeler,Managing Editor Helen M.Hoersch,Associate Editor Ellen J.McGlinchey,Senior Assistant Editor Helen Mahy,Assistant Editor Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:49:06 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction SERVICE LOADS MONITORING AND ANALYSIS Random Load Analysis as a Link Between Operational Stress Measure-ment and Fatigue Life AssessmentOTTO BUXBAUM 5 State of the Art in Aircraft Loads MonitoringL.E.CLAY,A.P.BERENS,AND R.J.DOMINIC 21 Determination of Sample Size in Flight Loads Programs A.P.BERENS 36 Use of AIDS Recorded Data for Assessing Service Load Experience J.B.DE JONGE AND D.I.SPIEKHOUT 48 Overview of the C-5A Service Loads Recording Programw.i.STONE,A.M.STANLEY,M.J.TYSON,AND W.H.KIMBERLY 67 Highlights of the C-141 Service Life Monitoring Program D.S.MORCOCK 84 Evaluation of a Crack-Growth Gage for Monitoring Possible Structural Fatigue-Crack GrowthN.E.ASHBAUGH AND A.F.GRANDT,JR.94 SERVICE SPECTRUM GENERATION AND SIMULATION Development of a Fatigue Lifetime-Load Spectrum for a Large-Scale Aluminum Ship ModelJ.T.BIRMINGHAM,N.V.MARCHICA,F.F.BORRIELLO,AND J.E.BEACH 121 Flight Spectra Development for Fighter AircraftN.H.SANDLIN,R.R.LAURIDLA