Composite manufacturing technology (soviet advanced composites technology series 1)

Composite manufacturing technology (soviet advanced composites technology series 1)

Composites Part A 27A (1996) 11-73 @ 1995 Elsevier Science Limited Printed in Great Britain. All rights reserved 1359-835X/96/$9.50 1359-835X(95)0000...

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Composites Part A 27A (1996) 11-73 @ 1995 Elsevier Science Limited Printed in Great Britain. All rights reserved 1359-835X/96/$9.50

1359-835X(95)00001-4

ELSEVIER

Book Reviews Composite

Manufacturing

Technology

(Soviet

Advanced

Composites

Technology

Series

1)

A. G. Bratukhin and V. S. Bogolyubov Chapman and Hall, London,,

1995,433

This book is aimed at ‘anyone researching or developing in composite materials science and technology and to manufacturing engineers, both industries and universities’. It is the first of six titles in ‘a coherent and definitive series of volumes dedicated to advanced composite materials research, development and usage in the former Soviet Union’. The two editors are affiliated to the Committee for the Defence Industry of Russia (Moscow) and at the Aviation Industry Scientific Research Centre (Moscow), respectively. It is claimed that much of the information presented has been classified until recently. The book cites a total of 119 references, but less than one in seven of these are likely to be readily available to readers in the West. There are four main directions identified in which ‘process development has been accomplished in the USSR: optimization of material properties at the stage of their manufacture, provision of structure manufacturability at the development stage, development and optimization of processes in pilot and mass production, and automated equipment and mechanized tool design. These constitute the basis of intergrated process planning and production of polymer composite aircraft structures. This concept includes integrated CAD systems that accomplish process plann’ing, material-composition determination, equipment and tooling design, and perform technological preparatory work for production in general. These integrated systems are supported by knowledge

+ xi pp., ISBN O-41 2-58250-3, bases, mathematical models, databanks and local CAD systems. They provide for the development of information retrieval systems that reduce the volume of work and time necessary in the design of new aircraft structures and in process development’. The chapters on machining of composites, on manufacture of honeycomb cores and on three-dimensional tooling design are world-class, demonstrating that considerable effort has been dedicated to these problems, and each chapter includes many practical details. The chapter on joining is very comprehensive in respect of mechanical fasteners, but perhaps less complete in the area of adhesive bonding. Further chapters on pre-impregnation of reinforcements, on vacuum-autoclave processing and on filament winding are competently written but closely parallel existing knowledge in the West. The chapter on non-destructive testing (NDT) would have benefited by the inclusion of more illustrations of the output from the NDT devices (many figures are scanning electron micrographs of the defects/damage which can be detected). The book appears to have been translated by a Russian national and sub-edited by someone with limited knowledge of advanced composites technology. Many concepts which may be unfamiliar to readers in the West remain unexplained (GOST requirements as national standards, ‘tsulaga attachment’ in the fixture for vacuum-autoclave moulding and the nature of certain

COMPOSITES

f 115.00 materials such as phenylone and terlone). The absence of comprehensive explanations (an Appendix with a Glossary of Terms would have helped) contributes to the difficulty in reading parts of the text, especially when Soviet material descriptions are used. Standard symbols and nomenclature used in the West have not been substituted consistently (y is used for density at page 1 and for polymer solubility parameter at page 3 1, while p is used for density at page 32 and for radius of curvature at page 80, and the case of V, in equation 2.15 becomes v, in the adjacent text). The units in which parameters are tabled are sometimes not given (the penetration coefficients (permeabilities) in Table 2.4) or are not consistent (strengths in MPa at page 56 and in kg me2 at page 57). At page 41 a section on ‘impregnation ofjibrousjllers without pressure’ appears as a heading with no supporting text. The book is a useful addition to the library of any practising composite manufacturing engineer, and is well produced apart from the lack of rigour in subediting/proof-reading. Professional judgement will occasionally be required in the interpretation of complex equations where unpaired brackets have resulted. Such problems are not normally anticipated in a book at this price.

John Summerscales Advanced Composites Manufacturing Centre University of Plymouth, UK

PART A Volume 27A Number 1 1996

71