Composite Materials in Aerospace Design

462 Pages·1996·7.87 MB·English

by  V. F. Kutyinov

Composite Materials in
Aerospace Design
Soviet Advanced Composites Technology Series
Serieseditors:I.N.Fridlyander, Russian Academy of
Sciences,Moscow, Russia
I.H.Marshall, UniversityofPaisley,
Paisley, UK
This series forms a unique record of research, developmentand applica
tion ofcomposite materials and components in the former Soviet Union.
Thematerialpresentedineachvolume,muchofitpreviouslyunpublished
and classified until recently, gives the reader a detailed insight into the
theoryandmethodologyemployedandthe resultsachievedby the Soviet
Union's top scientists and engineers in relation to this versatile class of
materials.
Titles in the series
1. CompositeManufacturingTechnology
Editors: A.G.Bratukhinand V.5.Bogolyubov
2. Ceramic-and Carbon-matrixComposites
Editor:V.I.Trefilov
3. Metal MatrixComposites
Editor:I.N.Fridlyander
4. PolymerMatrix Composites
Editor: R.E.Shalin
5. Fibre Science and Technology
Editor:V.I.Kostikov
6. CompositeMaterials in Aerospace Design
Editors:G.I.Zagainovand G.E.Lozino-Lozinski
Composite
Materials in
Aerospace Design
Edited by
G.I. Zagainov
DirectoroftheCentralAero-hydrodynamicInstitute
Zhukovski
MoscowRegiotl
Russia
and
G.B. Lozino-Lozinsky
NPOMolniya
Moscow
Russia
imi
SPRINGER-SCIENCE+BUSINESS MEDIA, B.V.
;('jSpringerScience+BusinessMedia Dordrecht
Softcoverreprintofthehardcover1stedition1996
Originallypublished byChapman& Hali
TypesetinPalatino10/12ptbyThomsonPress(1)Ltd.,NewDelhi
ISBN978-94-010-4254-3 IISBN 978-94-011-0575-0 (eeBook)
DOI10.1007/978-94-011-0575-0
Apartfrom any fairdealingfor thepurposesofresearchorprivatestudy,
orcriticismorreview,aspermittedundertheUKCopyright Designs and
PatentsAct,1988,thispublication maynotbereproduced,stored,or
transmitted,inanyformorbyany means,withoutthepriorpermission in
writingofthe publishers,orinthecaseofreprographicreproductiononly
inaccordancewiththetermsofthe licencesissuedby theCopyright
LicensingAgencyintheUK,orinaccordancewiththe termsofIicences
issuedbytheappropriateReproductionRightsOrganizationoutsidethe
UK.Enquiriesconceming reproductionoutside thetermsstatedhere
shouldbesenttothepublishersat the Londonaddressprintedon this
page.
Thepublishermakesnorepresentation,expressorimplied,withregard
totheaccuracy ofthe informationcontained inthisbook and cannot
acceptanylegal responsibilityorliabilityforanyerrorsoromissions that
maybemade.
Acataloguerecordfor thisbookisavailablefrom the British Library
r>,
~: Printedonacid-freetextpaper,manufactured inaccordancewith
ANSI/NISOZ39.48-1992(PermanenceofPaper).
Composite Materials in
Aerospace Design
Soviet Advanced Composites Technology Series
Series editors: J.N. Fridlyander, Russian Academy of
Sciences, Moscow, Russia
LH. Marshall, University of Paisley,
Paisley, UK
This series forms a unique record of research, development and applica
tion of composite materials and components in the former Soviet Union.
The material presented in each volume, much of it previously unpublished
and classified until recently, gives the reader a detailed insight into the
theory and methodology employed and the results achieved by the Soviet
Union's top scientists and engineers in relation to this versatile class of
materials.
Titles in the series
1. Composite Manufacturing Technology
Editors: A.C. Bratukhin and V.S. Bogolyubov
2. Ceramic-and Carbon-matrix Composites
Editor: V.L Trefilov
3. Metal Matrix Composites
Editor: J.N. Fridlyander
4. Polymer Matrix Composites
Editor: R.E. Shalin
5. Fibre Science and Technology
Editor: V.L Kostikov
6. Composite Materials in Aerospace Design
Editors: C.L Zagainov and C.E. Lozino-Lozinski
Composite
Mat erials in
Aerospace Design
Edited by
G.L Zagainov
Director of the Central Aero-hydrodynamic Institute
Zhukovski
Moscow Region
Russia
and
G.E. Lozino-Lozinsky
NPOMolniya
Moscow
Russia
CHAPMAN & HALL
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First edition 1996
© 1996 Chapman & Hall
Typeset in Palatino 10/12 pt by Thomson Press (I) Ltd., New Delhi
ISBN 0 412 58470 0
Apart from any fair dealing for the purposes of research or private study,
or criticism or review, as permitted under the UK Copyright Designs and
Patents Act, 1988, this publication may not be reproduced, stored, or
transmitted, in any form or by any means, without the prior permission in
writing of the publishers, or in the case of reprographic reproduction only
in accordance with the terms of the licences issued by the Copyright
Licensing Agency in the UK, or in accordance with the terms of licences
issued by the appropriate Reproduction Rights Organization outside the
UK. Enquiries concerning reproduction outside the terms stated here
should be sent to the publishers at the London address printed on this
page.
The publisher makes no representation, express or implied, with regard
to the accuracy of the information contained in this book and cannot
accept any legal responsibility or liability for any errors or omissions that
maybe made.
A catalogue record for this book is available from the British Library
§i Printed on acid-free text paper, manufactured in accordance with
ANSI/NISO Z39.48-1992 (Permanence of Paper).
Contents
List of contributors ix
Series preface xi
Preface xiii
1 Specific features of composite-material structural design 1
V.F. Kutyinov and AA Ionov
1.1 Introduction 1
1.2 Strength requirements of the airworthiness standards 8
1.3 Design of composite constructions and elements 18
1.4 Experimental studies of composite structures 81
1.5 Validation of strength computations 113
References 116
2 Analysis of stiffness, strength and fatigue characteristics of
multilayer composites 118
G.P. Sukhobokova and Yu.P. Trunin
2.1 Introduction 118
2.2 Analysis of laminate stiffness 119
2.3 Analysis of laminated-composite strength 126
2.4 Fatigue and cyclic crack resistance of composites 140
References 155
3 Methods of composite structural strength analysis 156
V.M. Andrienko, K.M. Ierusalimsky, AA Ionov, AL. Rubina,
G.P. Sukhobokova, AA Dudchenko and AN. Yelpatyevsky
3.1 Stability analysis of composite laminates 156
3.2 Strength analysis of composite rods 169
3.3 Analysis of sandwich cylindrical panels 183
3.4 Analysis of wafer panels 189
3.5 Analysis of stiffened stringer panels 196
3.6 Stability analysis of thin conic and cylindrical shells 225
3.7 Stability analysis of sandwich conic and cylindrical shells 242
3.8 Analysis of panels with cut-outs 260
vi Contents
3.9 Analysis of beam structures 273
References 291
4 Methods for experimental and analytical evaluation of
the residual strength of composite structures with stress
concentration 295
Yu.P. Trunin, A.E. Ushakov and S.A. Lurie
4.1 Experimental procedures for investigating the stress
concentration effect on strength of composites 295
4.2 Model of static fracture toughness and fracture criteria 304
4.3 Residual strength of damaged structural elements 315
4.4 Methods for increasing the residual strength of damaged
structural elements 323
4.5 Fracture of a flat specimen with delamination under
compression 329
References 341
5 Methods of design and analysis of joints 343
A.A. Ionov, V.F. Kutyinovand Yu.P. Trunin
5.1 Analysis of mechanical joints 343
5.2 Analysis of adhesive joints 351
References 370
6 Application of the finite-element method to the structural
analysis of composite structures 372
A.S. Dzuba, A.A. Ionov and V.F. Kutyinov
6.1 Introduction 372
6.2 Method of analysis of complex load-carrying structures
made of composite materials 372
6.3 Mathematical models of typical fragments of structures
made of composite materials 376
6.4 Results of analysis of stress-strain state and strength of
composite structures using the example of cargo
compartment doors 379
References 387
7 Characteristics of the certification of composite structures 389
Yu.A. Stuchalkin, A. V. Stewart and A.E. Ushakov
7.1 Introduction 389
7.2 Enlarged scatter of strength properties and additional
safety factor 389
7.3 Evaluation of reliability and safety factors in the case of
short-term strength reduction with subsequent restoration 401
7.4 Damage tolerance evaluation 405