_STP_460-1969.pdf

COMPOSITE MATERIALS:TESTING AND DESIGN A symposium presented at a meeting of Committee D-30 on High Modulus Fibers and Their Composites AMERICAN SOCIETY FOR TESTING AND MATERIALS New Orleans,La.,11-13 Feb.1969 ASTM SPECIAL TECHNICAL PUBLICATION 460 List price$31.00 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 BY AMERICAN SociETY FOR TESTING AND MATERIALS 1969 Library of Congress Catalog Card Number:76-89674 SBN 8031-0017-5 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in York,Pa.December 1969 Foreword The papers in the Symposium on Composite Materials:Testing and Design were presented at a meeting held in New Orleans,La.,11-13 February 1969.The symposium was sponsored by The American Society for Testing and Materials through its Committee D-30 on High Modulus Fibers and Their Composites.Steven Yurenka,McDonnell Douglas Corp.,presided as symposium chairman.Related ASTM Publications Metal Matrix Composites,STP 438(1968),$18.50 Fiber-Strengthened Metallic Composites,STP 427(1967),$12.75 Contents Introduction 1 Testing Composite Materials Testing-S.P.PROSEN.5 Mechanical Properities and Test Techniques for Reinforced Plastic Laminates-s.DASTIN,G.LUBIN,J.MUNYAK,AND A.SLOBODZINSKI.13 Special Problems Associated with Boron-Epoxy Mechanical Test Specimens-R.N.HADCOCK AND J.B.WHITESIDE.27 Characterization of Anisotropic Composite Materials-.c.HALPIN,N.J.PAGANO,J.M.WHITNEY,AND E.M.WU.37 Test Methods for High-Modulus Carbon Yarn and Composites-J.T.HOGGATT.48 The Effect of Geometry on the Mode of Failure of Composites in Short-Beam Shear Tests-S.A.SATTAR AND D.H.KELLOGG.62 Characterization of the Mechanical Properties of a Unidirectional Carbon Rein-forced Epoxy Matrix Composite-E.A.ROTHMAN AND G.E.MOLTER.72 A Simplified Method of Determining lnplane Shear Stress-Strain Response of Unidirectional Composites-P.H.PETIT.83 Angle-Plied Boron/Epoxy Test Methods-A Comparison of Beam-Tension and Axial Tension Coupon Testing-R.B.LANTZ AND K.G.BALDRIDGE 94 Compression Testing of Aluminum-Boron Composites-N.R.ADSIT AND J.D.FOREST.108 Preliminary Evaluation of Test Standards for Boron Epoxy Laminates-E.M.LENOE,M.KNIGHT,AND C.SCHOENE.122 Shear-Modulus Determination of Isotropic and Composite Materials-L.B.GRESZCZUK.140 End Plugs for External Pressure Tests of Composite Cylinders-R.J.MILLER 150 Strength Theories of Failure for Anisotropic Materials-B.E.KAMINSKI AND R.B.LANTZ.160 Optimization of a Boron Filament Reinforced Composite Matrix-P.W.JUNEAU,JR.,L.H.SHENKER,AND V.N.SAFFIRE.170 Defining the Adhesion Characteristics in Advanced Composites-G.L.HANNA AND SAMUEL STEINGISER.182 Fatigue Testing and Thermal-Mechanical Treatment Effects on Aluminum-Boron Composites-H.smMIZU AND J.F.DOLOWY,JR.192 Mechanical Testing of Metal-Matrix Composites-K.G.KREIDER.203 v Fatigue and Creep Fatigue Fundamentals for Composite Materials-K.H.BOLLER 217 Creep and Fatigue Behavior of Unidirectional and Cross-Plied Composites-!.J TOTH.236 Creep and Rupture of Graphite-Epoxy Composites-F.Y.SOLIMAN 254 Characterizing Strength of Unidirectional Composites-a.ISHAI AND R.E.LAVENGOOD.271 Design and Application Practical Influence of Fibrous Reinforced Composites in Aircraft Structural Design-H.C.SCHJELDERUP AND B.H.JONES.285 Determination of Design Allowables for Composite Materials-B.H.JONES 307 Characterization of Graphite Fiber/Resin Matrix Composites-R.A.ELKIN,G.FUST,AND D.P.HANLEY,321 Failure Criteria for Filamentary Composites-c.c.CHAMIS.336 Shear Stability of Laminated Anisotropic Plates-J.E.ASHTON AND T.s.LOVE 352 Behavior of Fiber-Reinforced Plastic Laminates under Biaxial Loading-c.W.BERT,B.L.MAYBERRY,AND J.D.RAY,362 Methods of Joining Advanced Fibrous Composites-R.N.DALLAS.381 Diffusion Bonded Scarf Joints in a Metal Matrix Composite-E.F.OLSTER AND R.C.JONES.393 Tungsten Alloy Fiber Reinforced Nickel Base Alloy Composites for High-Temperature Turbojet Engine Applications-D.w.PETRASEK AND R.A.SICNORELLI 405 Composite Materials for High-Temperature Magnetic Applications-D.M.PAVLOVIC AND R.J.TOWNER.417 Cryogenic Boron-Filament-Wound Pressure Vessels-E.E.MORRis AND R,J.ALFRING.430 Structural Synthesis of Composite Materials for Ablative Nozzle Extensions-N.N.AU,E.R.SCHEYHINC,AND C.D.SUMMERS,444 Structural Evaluation of Long Boron Composite Columns-J.w.GOODMAN AND J.A.GLIKSMAN.460 Fracture Mechanics Fracture Processes in Fiber Composite Materials-A.s.TETELMAN 473 Crack Phenomena in Cross-Linked Glassy Polymers-F.J.MCCARRY AND J N.SULTAN.503 Fractography of Aluminum-Boron Composites-R.c.JONES.512 Tensile Strength of Fiber-Reinforced Composites:Basic Concepts and Recent Developments-CARL ZWEBEN.528 vi Contents Fracture in Graphite Filament Reinforced Epoxy Loaded in Shear-R.C.NOVAK.540 Electrical and Photographic Techniques for Measuring Microcracking in Some Fiber Reinforced Plastics-WILLIAM MAHIEU 550 Microstrain in Continuously Reinforced Tungsten-