1、EDDY-CURRENT CHARACTERIZATION OF MATERIALS AND STRUCTURES A symposium sponsored by ASTM Committee E-7 on Nondestructive Testing AMERICAN SOCIETY FOR TESTING AND MATERIALS Gaitliersburg,Md.,5-7 Sept.1979 ASTM SPECIAL TECHNICAL PUBLICATION 722 George Birnbaum and George Free,National Bureau of Standar
2、ds,editors ASTM Publication Code Number(PCN)04-722000-22 1811 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelpliia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Sat Jan 2 23:23:17 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to L
3、icense Agreement.No further reproductions authorized.Copyright by AMERICAN SOCIETY FOR TESTING AND MATERIALS 1981 Library of Congress Catalog Card Number:80-67398 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Coclteysville,Md.Fe
4、bruary 1981 Copyright by ASTM Intl(all rights reserved);Sat Jan 2 23:23:17 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The symposium on Eddy-Current Characterization of Materials and Struc-t
5、ures was presented at Gaithersburg,Md.,5-7 Sept.1979.The symposium was sponsored by the American Society for Testing and Materials through its Committee E-7 on Nondestructive Testing,and was co-sponsored by the Na-tional Bureau of Standards and the American Society for Nondestructive Testing.The sym
6、posium was held in cooperation with the IEEE Magnetics Society and the IEEE Power Engineering Society.George Birnbaum and George Free,National Bureau of Standards,presided as symposium chairmen and editors of this publication.Copyright by ASTM Intl(all rights reserved);Sat Jan 2 23:23:17 EST 2016Dow
7、nloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Real-Time Radiologic Imaging:Medical and Industrial Applications,STP 716(1980),$36.50,04-716000-22 Computer Automation of Materials Testing,
8、STP 710(1980),$21.75,04-710000-32 Acoustic Emission Monitoring of Pressurized Systems,STP 697(1979),$26.50,04-697000-22 Nondestructive Testing StandardsA Review,STP 624(1977),$33.75,04-624000-22 Practical Applications of Neutron Radiography and Gaging,STP 586(1976),$25.50,04-586000-22 Monitoring Str
9、uctural Integrity by Acoustic Emission,STP 571(1975),$23.75,04-571000-22 Acoustic Emission,STP 505(1972),$22.50,04-505000-22 Copyright by ASTM Intl(all rights reserved);Sat Jan 2 23:23:17 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No
10、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 is a body of technical experts whose dedication,sacrifice of time and effort,and collective wisdom in reviewing the papers must
11、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);Sat Jan 2 23:23:17 EST 2016Downloaded/printed byUni
12、versity 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 Helen P.Mahy,Senior Assistant Editor Allan S.Kleinberg,Assistant Editor Copyright by ASTM Intl(all rights r
13、eserved);Sat Jan 2 23:23:17 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction THEORETICAL ANALYSIS OF FIELDS,DEFECTS,AND STRUCTURES I Development of Theoretical Models for Nondestruct
14、ive Testing Eddy-Current Phenomenaw.LORD AND R.PALANISAMY 5 Numerical Solution of Electromagnetic-Field Eddy-Current Problems in Linear and Nonlinear Metallic Structures:The RMS Phasor and Instantaneous Approaches as Potential Tools in Nondestructive Testing ApplicationsN.A.DEMERDASH AND T.W.NEHL 22
15、 Eddy-Current Simulation in Prisms,Plates,and Shells with the Program EDDYNETL.R.TURNER,R.J.LARI,AND G.L.SANDY 48 Finite-Element Analysis of Eddy-Current Flaw Detection M.V.K.CHARI AND T.G.KINCAID 59 CALIBRATION AND STANDARDS Application of Reference Standards for Control of Eddy-Current Test Equipm
16、entG.WITTIG,M.BELLER,A.LEIDER,W.STUMM,AND H.p.WEBER 79 A Macroscopic Model of Eddy Currentss.HERMAN AND R.S.PROD AN 86 Secondary Conductivity Standards StabilityA.R.TONES,SR.94 APPLICATIONS:MATERIAL PROPERTIES AND DEFECTS High-Accuracy Conductivity Measurements in Nonferrous Metals GEORGE FREE 121 High Peak Energy Shaped-Pulse Electromagnetic Crack Detection I.G.HENDRICKSON AND K.A.HANSEN 129 Copyright by ASTM Intl(all rights reserved);Sat Jan 2 23:23:17 EST 2016Downloaded/printed byUniversity o
