Numerical investigation of hybrid of eglass and basalt fiber reinforced epoxy tube pressurized internally

Abstract

The composite hybrid pipe is a novel structure made of concentric composite multilayer possess improved thermal and mechanical properties better than its original components. At variance experimental analysis, the numerical studies on the structure and behavior of composite hybrid natural fiber reinforced epoxy pipe materials pressurized internally seem lacking. In this study, numerical analysis was carried out for three different stacking plies of composite hybrid natural fiber ±55° basalt and Eglass fiber reinforced epoxy tube which was tested under the subjection for three modes of applied load, the hoop and longitudinal tensile tested as well as subjection under biaxial internal pressures load in accordance to ASTM's standard to investigate the mechanical behavior and the optimal configuration among them. Also, analyzed the comparable three types of hybrid natural fiber (basalt)/Eglass reinforced epoxy with pure ±55° Eglass reinforced epoxy and pure ±55° basalt reinforced epoxy numerically to predict the performance for the hybrid over the pure E-glass and basalt fiber reinforced epoxy composite pipe as a good replacement to meet the different demand of applications in the pressure pipelines. Also The three stacking plies types of hybrid composite pipes were compared with the pure E-glass and basalt fiber reinforced epoxy pipes. All samples were fabricated using a dry filament wound CNC machine with ±55° orientation angle, then infused with epoxy resin using vacuum infusion procedure (VIP). Numerical analysis was carried out using finite element commercial code ANSYS V14.