What's New

Last updated 5/08/2013

 A new filament winding book, entitled "Composite Filament Winding" has been written and is available at the ASM website,
and at Amazon. http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dstripbooks&field-keywords=Composite+Filament+Winding
 Publisher is ASM (American Society of Materials)  The author has a limited number of copies at a reduced price

Composite Filament Winding Book Cover

This book adds to and builds on the information supplied by "Filament Winding, Composite Structure Fabrication" published in 1992 and 1998.  It differs from the previous book because it principally adresses the automated filament winding area.

Here is the preface:
Preface to Composite Filament Winding
This is the first contemporary book to treat filament winding with a focus on automation.  The purpose of this book is to provide detailed procedures for automated filament winding for complex shapes, to chronicle the progress that has been made in robotic filament winding along with ancillary processes that support the deposition process It is also to show what has and what can be done to advance the process and science of low cost composite fabrication by filament winding. The need for this book has been evident since the bulk of filament winding machinery purchases now have a greater number of control axes and substantial automation in ancillary operations, such as mandrel removal, and cure (Ch. 2).   There has also been a geographical shift with the process.  Literature searches have shown that more professional papers now emerge from Canada, South Korea and The Netherlands than from the United States.  Investigators at the Korea Advanced Institute of Science and Technology have developed two new iterations of the STEB (Ch. 8)
This book builds on three previous publications (1,2,3) and the many individual publications and presentations of the authors of the present work.  The previous books (1,2) addressed mainly aerospace applications and offered hands-on instructions for making components using the rudimentary, by today’s standards, winders.  Among other areas, (3) presented geodetic and non-geodetic roving trajectories, kinematics with collision control, and derived articulated pressurizable structures.
Four of the nine chapters in this book, (Chs.2,3,4,5), address automation directly.  Now the highest automation is used in the commercial arena, e.g pipes. The kinds of structures that can be produced are shown in (Chs. 6 and 7). Finally, Ch 9, addresses the actual processes of pressure vessel analysis, fabrication and testing.
I want to dedicate this book to two mentors and friends, Yuri Tarnopol’skii and Lowrie McLarty who both gently prodded me to composite physical and mental activity and who corrected some of my more glaring errors.  I still hold them in my memory.  I would also like to acknowledge the excellent editorial staff at ASM International.  They were thoroughly competent and professional and furthermore, easy to work with.

(1)(2)”Filament Winding, Composite Structure Fabrication” SAMPE Publishers, 1991,1999
(3) “Filament Winding, a Unified Approach” Sotiris Koussios, Delft University Press, 20

Composite Filament Winding

Table of Contents

S. T. PetersIntroduction and Overview
John E. GreenAutomated Filament Winding Systems
Sotiris KoussiosIntegral Design For Filament Winding:
Materials, Winding Patterns and Roving Dimensions For Optimal Pressure Vessels
A.P.PriestleyProgramming Techniques and CAM & Simulation Software
Sotiris KoussiosFiber Trajectories on Shells of Revolution:
An Engineering Approach
J. Lowrie McLartyControl of Winding Parameters
S.T. PetersStatic Mechanical Tests For Filament Wound Composites
Hugh ReynoldsPressure Vessel Design and Manufacture
James LeslieFilament Winding Technology Learned

Stan Peters gave a 30 minute presentation to the Northern California SAMPE Chapter on   April 29, 2011entitled "What the New Materials Engineer needs to know" The presentation was a revision of the paper "The Basics of Materials Engineering", previously presented at the SAMPE Wichita, KS technical Conference, 10/29/09.  The abstract is below and the full paper PDF can be obtained here

The Basics of Materials Engineering 

This paper addresses the needs of new and mature materials engineers who do not belong to a large group such one would find in many aerospace companies.  Three of those needs are: What do we do?  What do we need to know?  How do we get what we need?

 The wide scope of materials engineering is shown along with the somewhat limited scope of work for the current materials engineers in the high tech industries of aerospace or electronics.  Two of the key processes of interest are highlighted.  They are: selecting and building the composite and adhesive bonding.  The pitfalls for composite design and manufacture and the options for surface preparation are greater at this time than at any time in the past, and these options are presented along with material to aid choice.  One typical problem for the lonely materials engineer in a small company is the predilection for other engineers and management to accept a low value for average lap shear, provided it allows a sufficient factor of safety. Examples of actual materials engineering problems and their solutions are given along with approaches for testing, composite fabrication, and adhesive bonding.

Below is a relevant table from that  publication.

Surface Preparations for Bare AluminumComments                                               
No treatment, solvent wipeWildly variable due to the non-removal of
the weak oxide layer
Grit Blast (GB) plus Conversion CoatingInconsistent, low values
Grit blast plus solvent wipeGood initial values, poor durability
Grit Blast plus Mil P 23377 PrimerLow, inconsistent values
GB plus Chem. Film, Mil-P-5541 Cl. 3Low Values.  < 13780MPa (2000 psi)
GB plus Br 127 primer (Note 1)Good values, Better durability
GB plus FPL Etch plus primer (Note 2)Good values and durability
GB plus P-2 Etch and primer (Note 3)Good values and durability
GB plus Silane, BR 127 (Note 4)Excellent values and durability
GB plus Sol-Gel plus Br127 primer Note 5Excellent values and durability
GB plus PAA plus Br127 PrimerExcellent values and highest durability

1.    Br 127 primer is product and TM of Cytec Industries (one should be aware that there are strict limits on the applied primer thickness)
2.    Forest Products Lab, Combination of Chromic and Sulfuric Acids.  EPA Limited
3.    P-2 etch and optimized P-2 use acids which are not EPA limited
4.    Silane treatment used by RAAF, and WRALC (C-141)
5.    Sol-Gel patented and developed by Boeing.  Extensive testing by AFRL (9)
6    PAA equals Phosphoric Acid Anodize, which may not be available in all venues. It has the highest most consistent values, and best proven durability

Finally there is will be an e-book  version of the book "Filament Winding, Composite Structure Fabrication" which as mentioned before, was published in 1998 and is now out of print.  

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