Effect of oil pressure upon filament wound basalt/glass fibers hybrid polymer based composite pipes subjected to low velocity impact

In this study, low-velocity impact tests were applied to E-glass fiber (GFR) and basalt fiber reinforced (BFR) filament-wound hybrid composite pipes. The BFR/GFR hybrid pipes were subjected to low-velocity impact tests when they were oil-unfilled, oil-filled at 0 bar (unpressurized oil) and low oil pressure at 5 bar. Impact energies were applied as 15 J, 20 J and 25 J, respectively. After the experiments, the dynamic behaviors and damage formation within the samples were evaluated in terms of type and severity.