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Influence of Internal Cyclic Pressure on Filamentwound Composite Tubes Quality
Jovan Radulović
In this paper the influence of internal hydraulic cyclic pressure on the quality of filamentwound composite glass fiber/polyester resin tubes was investigated. Mechanisms of composites tubes destruction which can be caused by cyclic internal stresses are described and ilustrated. During the action of changeable internal pressure neither weepage of tubes nor drop of applied pressure happened. Almost the same values of hydraulic burst pressure and final radial deformation of cyclised and noncycliced tubes pointed out that the described treatment of cycling has no negative influence on the tested tubes quality. Key words: composites, polymers, polyester resin, glass fiber, filament winding, tubes, cycling loading, pressure effects, hydraulic pressure.
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