Fatigue Behavior of Glass-Filament-Wound Epoxy Composites in Water

The significance of matrix compositions has been studied relation to the fatiguecharacteristics of glass-filament- ound reinforced plastics. Evidence indicatesthat water, as compared with air, severely limits the dynamic fatigue life of FRPepoxy. It is suggested that a relationship may exist between...

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Bibliographic Details
Main Authors: Romans, J. B, Sands, A. G, Cowling, J. E
Format: Report
Language:English
Subjects:
EPOXY MATRIX COMPOSITES
EPOXY RESINS
FATIGUE(MECHANICS)
FIBERGLASS REINFORCED PLASTICS
FILAMENT WOUND CONSTRUCTION
GLASS TEXTILES
Laminates and Composite Materials
LIQUID IMMERSION TESTS
MECHANICAL PROPERTIES
REINFORCED PLASTICS
REINFORCING MATERIALS
UNDERWATER EQUIPMENT
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Summary:The significance of matrix compositions has been studied relation to the fatiguecharacteristics of glass-filament- ound reinforced plastics. Evidence indicatesthat water, as compared with air, severely limits the dynamic fatigue life of FRPepoxy. It is suggested that a relationship may exist between matrix degradationand the time-dependent response of the composite material to dynamic stresses.A new, very-water-resistant epoxy resin is shown to increase the reliability ofFRP by 200 to 300% in comparison with an equivalent state-of-the-art compositionexposed to the same type of stress and environmental conditions. (Author-PL)