1、NONDESTRUCTIVE EVALUATION AND FLAW CRITICALITY FOR COMPOSITE MATERIALS A symposium sponsored by ASTM Committee D-30on High Modulus Fibers and Their Composites AMERICAN SOCIETY FOR TESTING AND MATERIALS Philadelphia,Pa.,10-11 Oct.1978 ASTM SPECIAL TECHNICAL PUBLICATION 696 R.B.Pipes,University of Del
2、aware,editor W.R.Scott S.V.Kulkarni-coeditors W.W.Stinchcomb J List price$34.50 04-696000-33 m AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:29:36 EST 2015Downloaded/printed byUniversity of Washington(Unive
3、rsity of Washington)pursuant to License Agreement.No further reproductions authorized.Copyright AMERICAN SOCIETY FOR TESTING AND MATERIALS 1979 Library of Congress Catalog Card Number:79-53320 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.
4、Printed in Baltimore.Md.December 1979 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:29:36 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The symposium on Nondestructive Evaluation a
5、nd Flaw Criticality for Composite Materials was presented at Philadelphia,Pa.,10-11 Oct.1978.The American Society for Testing and Materials Committee D-30 on High Modulus Fibers and Their Composites sponsored the symposium.R.B.Pipes,University of Delaware,presided as symposium chairman and editor of
6、 this publication.W.R.Scott,S.V.Kulkarni,and W.W.Stinchcomb presided as session chairmen and coeditors of this publication.Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:29:36 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No f
7、urther reproductions authorized.Related ASTM Publications Advanced Composite MaterialsEnvironmental Effects,STP 658(1978),$26.00,04-658000-33 Fatigue of Filamentary Composite Materials,STP 638(1977),$26.50,04-638000-33 Nondestructive Testing StandardsA Review,STP 624(1977),$33.75,04-624000-22 Copyri
8、ght by ASTM Intl(all rights reserved);Sun Dec 27 13:29:36 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
9、 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 acknowledg
10、e with appreciation their contribution.ASTM Committee on Publications Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:29:36 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Editorial Staff Jane
11、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);Sun Dec 27 13:29:36 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreeme
12、nt.No further reproductions authorized.Contents Introduction NONDESTRUCTIVE EVALUATION METHODOLOGY FOR COMPOSITE MATERIALS Ultrasonic Techniques for Inspecting Flat and Cylindrical Composite SpecimensT.LIBER,I.M.DANIEL,AND S.W.SCHRAMM 5 Holographic Techniques for Defect Detection in Composite Materi
13、alsG.E.MADDUX AND G.P.SENDECKYJ 26 Effects of Material Inhomogeneities on Ultrasonic Measurements:The Problem and a Solutionj.s.HEYMAN AND J.H.CANTRELL,JR.45 Neutron Radiographic Nondestructive Inspection for Bonded Composite Structuresw.E.DANCE AND J.B.MIDDLEBROOK 57 Liquid Crystals for Flaw Detect
14、ion in Compositesi.A.CHARLES 72 Detection of Damage in Composite Materials by Vibrothermography E.G.H E N N E K E,II,AND T.S.JONES 83 Summary 96 FLAW CRITICALITY OF COMPOSITE MATERIALS Characterization of Impact Damage in Composite LaminatesD.E.PETTIT 101 Flaw Criticality of Graphite/Epoxy Structure
15、sD.Y.KONISHI AND K.H.LO 125 Effect of Impact Damage and Holes on the Compressive Strength of a Graphite/Epoxy Laminatej.H.STARNES,JR.,M.D.RHODES,AND J.G.WILLIAMS 145 Impact Damage Effects on the Strength of Advanced Composites J.D.LABOR 172 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:2
16、9:36 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.A Fracture Mechanics Approach to the Analysis of Graphite/Epoxy Laminated Precracked Tension Panelsw.i.GRIFFITH,M.F.KANNINEN,AND E.F.RYBICKI 185 Summary 202 FLAW CHARACTERIZATION IN COMPOSITE MATERIALS Moisture-Induced Surface Damage in T300/5208 Graphite/Epoxy Laminatesc.D.SHIRRELL,W.H.LEISLER,AND F.A.SANDOW 209 Fracture Surface Characterization o
