Thermal Stability and Hoop Tensile Properties of Glass Fiber Composite Pipes

Aim of this work is to present the thermal properties and mechanical behaviour of glass fibre/epoxy resin filament wound tubular structures winded with different winding angles. Conducted thermal analysis have demonstrated thermal stability of used epoxy resin system even at temperatures higher than 130oC and small percent of weight loss until temperature of 350oC. With help of split-disc test hoop tensile strength of manufactured composite samples was investigated. Received results have confirmed the expectations that use of higher winding angle in filament winding technology lead to better mechanical properties of composite tubular structures subjected under internal pressure. Also, fibre-matrix deboning was determined as failure mechanisms by all samples. SEM images have confirmed good merger between reinforcement and the matrix