Characterization of Prepreg Tow Carbon/Epoxy Laminates

[+] Author and Article Information
S. R. Swanson

Department of Mechanical and Industrial Engineering, University of Utah, Salt Lake City, Utah 84112

G. R. Toombes

Hercules Incorporated, Magna, Utah 84044

J. Eng. Mater. Technol 111(2), 150-153 (Apr 01, 1989) (4 pages) doi:10.1115/1.3226447 History: Received January 03, 1988; Online September 15, 2009


Resin systems used in wet filament winding differ from those used in prepreg laminates. However it is possible to use the resins from prepreg systems in filament winding by using prepreg tows. A characterization study was carried out to investigate the matrix dominated properties of filament wound systems using AS4/3501-6 carbon/epoxy. This 3501-6 resin system is normally used in layed up prepreg laminates. The tests used were torsion combined with axial tension and compression of thin-walled tubes. The results showed the shear and cross fiber properties to be similar to those seen in layed up prepreg systems, and considerably higher than obtained with usual wet filament winding resins. Additional tests were performed on [±45]2s filament wound cylinders. Shear properties from these tests agreed well with the torsion tests at low stress levels, but were quite different at high stresses due to microcracking and state of stress effects.

Copyright © 1989 by ASME
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