_STP_546-1974.pdf

COMPOSITE MATERIALS:TESTING AND DESIGN(THIRD CONFERENCE)A conference sponsored by the AMERICAN SOCIETY FOR TESTING AND MATERIALS Williamsburg,Va.,21-22 March 1973 ASTM SPECIAL TECHNICAL PUBLICATION 546 C.A.Berg,F.J.McGarry,and S.Y.Elliott,coordinators List price$39.75 04-546000-33 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Sun Jan 3 21:27:58 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.by American Society for Testing and Materials 1974 Library of Congress Catalog Card Number:70-185534 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore,Md.June 1974 Copyright by ASTM Intl(all rights reserved);Sun Jan 3 21:27:58 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The Third Conference on Composite Materials:Testing and Design was held 21-22 March 1973 in Williamsburg,Va.Committee D-30 on High Modulus Fibers and Their Composites of the American Society for Testing and Materials sponsored the conference in conjunction with the Metallurgical Society of the American Institute of Mining,Metallurgical,and Petroleum Engineers and the American Society of Mechanical Engineers.C.A.Berg,University of Pittsburgh,F.J.McGarry,Massachusetts Institute of Technology,and S.Y.EUiott,Douglas Aircraft Company,served as coordinators.Most of the papers presented at the eight sessions are included in the volume which complements the first and second conference publications,ASTMSTP 460 and ASTMSTP 497,Composite Materials:Testing and Design.Copyright by ASTM Intl(all rights reserved);Sun Jan 3 21:27:58 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Composite Materials:Testing and Design(Second Conference),STP 497(1972),$36.50(04-497000-33)Analysis of the Test Methods for High Modulus Fibers and Composites,STP 521(1973),$30.75(04-521000-33)Applications of Composite Materials,STP 524(1973),$16.75(04-524000-33)Copyright by ASTM Intl(all rights reserved);Sun Jan 3 21:27:58 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction Testing Methods Microbuckling of Lamina-Reinforced CompositesZ-.B.Greszczuk 5 Theoretical Considerations 6 Experimental Studies on Microbuckling of Lamina-Reinforced Composites 8 Conclusions 26 Analysis of the Flexure Test for Laminated Composite Materials/.M.Whitney,C.E.Browning,and A.Mair 30 Analysis 31 Transverse Shear Deformation 36 Experimental Data 38 Discussion 40 Conclusions 42 Methods for Determining the Elastic and Viscoelastic Response of Com-posite MaterialsZ).F.Sims and J.C.Hatpin 46 Validity of 45 deg Laminate Test and Rail Shear Test 48 Experimental Results 56 Conclusions 60 Analysis,Testing,and Design of Filament Wound,Carbon-Carbon Burst Tubes-i?.C.Renter,Jr.and T.R.Guess 67 Analysis 69 Numerical Results and Discussion 75 Conclusions 82 Elastic Torsional Buckling of Thin-Walled Composite CylindersZ).E.Marlowe,G.F.Sushinsky,and H.B.Dexter 84 Analysis 86 Specimens 87 Torsional Tests 91 Results and Discussion 93 Future Work 103 Conclusions 108 Analytical Treatments A Correlation Study of Finite-Element Modeling for Vibrations of Com-posite Material Panels.A.Thornton and R.R.Clary 111 Description of Correlation Study 112 Discussion of Results 118 Concluding Remarks 128 Copyright by ASTM Intl(all rights reserved);Sun Jan 3 21:27:58 EST 2016Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Probabilistic Concepts in Modeling the Tensile Strength Behavior of Fiber Bundles and Unidirectional Fiber/Matrix Composites5.L.Phoenix 130 Single-Fiber Tensile Strength Model 131 Generalized Fiber Bundle Strength Analysis 136 Probabilistic Tensile Failure Theories for Unidirectional Composites 143 Summary 149 Debonding of Rigid Inclusions in Plane ElastostaticsG.P.Sendeckyf 152 Basic Equations 154 Partially Bonded Elliptic Inclusion 155 Analysis and Discussion of Results 159 On the Determination of Physical Properties of Composite Materials by a Three-Dimensional Finite-Element ProcedureS./.Kang and G.M.Rentzepis 166 The Finite-Element Method 167 Computation of the Elastic Constants 172 Applications 174 The Unidirectional Fiber Composite 174 The Lamellar Composite 180 The Short-Fiber Composite 180 Discussion 186 Laminate StrengthA Direct Characterization Procedure.M.Wu and J.K.Scheublein 188 Basic Procedures for Establishing Laminate Failure Criterion 189 Experimental Results and Discussion 202 Summary and Conclusion 206 Experimental Studies Stress-