Mechanical behaviour of filament-wound GFRP and BFRP composite tubes

Composite materials play a crucial role in the development of lightweight and innovative industry.For high-performance structures such as composite pressure vessels, tubes and pipelines, filament-winding technology is used as a highly automated and reliable manufacturing method.In this study, the mechanical investigation of composite tubes is performed.The analysis consists of a comparison of basalt and glass fibre reinforced plastics (BFRP and GFRP) under axial compression loading.The tubes were manufactured with one layer wound using a 55 winding angle and additional hoop reinforcement in the gripping area.During axial compression loading, the acoustic emission method was used to identify the damage modes occurring in the two groups of materials.Post-failure observations were conducted to assess the crack type and geometry.The results showed that GFRP exhibited superior performance over BFRP in terms of compressive strength (41% higher) and absorbed energy (20% higher).