SYMPOSIA PAPER Published: 01 January 1975
STP32332S

Fatigue, Creep, and Impact Resistance of Aramid Fiber Reinforced Composites

Source

Kevlar® 49 a high-strength, high-modulus, low-density organic fiber has gained significant acceptance as a weight-reducing replacement for E-glass in aircraft applications and for S-glass in filament-wound missile components. New end-use applications require a better understanding of the static and dynamic fatigue and impact resistance of these composites. The tension-tension fatigue life of both unidirectional fiber and fabric-reinforced laminates was greater than that of comparable glass-reinforced composites. The creep rate under continuous tensile stress was comparable to that of glass composites. The ball-drop impact resistance of Kevlar 49 fabric laminate-faced sandwich panels was dependent on fabric weave construction and number of face sheet plies. This relationship was significantly different for sandwich beams having glass-reinforced facings.

Author Information

Miner, LH
E. I. du Pont de Nemours & Co., Inc., Wilmington, Del.
Wolffe, RA
E. I. du Pont de Nemours & Co., Inc., Wilmington, Del.
Zweben, CH
E. I. du Pont de Nemours & Co., Inc., Wilmington, Del.
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Details
Developed by Committee: D30
Pages: 549–559
DOI: 10.1520/STP32332S
ISBN-EB: 978-0-8031-4660-0
ISBN-13: 978-0-8031-0309-2