Static and Dynamic Fatigue Behavior of Glass Filament-Wound Pressure Vessels at Ambient and Cryogenic Temperatures
Glass fibers have shown outstanding strength and strength-to-density ratio properties that make their application to pressure vessels particularly attractive. The application has been generally in the form of filament-wound glass-reinforced plastic . However, after extended periods of static or dynamic loading at ambient temperatures, the rate of strength-degradation of filament-wound glass-reinforced plastic pressure vessels has been high compared with that of metallic pressure vessels . Under stress, the resin matrix generally cracks or crazes [3,4] which exposes the glass fibers to atmospheric moisture causing degradation of the fibers. At cryogenic temperatures, however, the moisture problem is reduced, and an improvement in fatigue properties would be expected. Furthermore, the glass strength increases significantly as the temperature is lowered .
KeywordsFatigue Crack Pressure Vessel Liquid Nitrogen Temperature Cryogenic Temperature Plastic Cylinder
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