Inner blast response of fiber reinforced aluminum tubes

In this work, the dynamic failure of Fiber Reinforced Metal Tubes (FRMTs) under inner blast load was experimentally investigated. The FRMTs was prepared by winding the basalt fiber or H-glass fiber onto the aluminum lining through filament winding process. The influence of explosive mass, winding angle and number of layers on the failure modes of FRMTs were obtained and discussed. The results showed that the fiber reinforced metal tubes performed better anti-blast performance compared to metallic tubes, in terms of deformation amount and failure severity. The FRMTs with winding angle of ±55° provided the best anti-explosion performance under inner blast as a result of the balance between circumferential and axis stresses, and the blast resistance can further be enhanced by optimizing the circumferential strength of inner layers through changing the inner winding angle. With higher strength and flexibility, the H-glass fiber reinforced metal tube had less penetration cracks, small expansion ratio and axial deformation width compared with basalt fiber reinforced metal tubes. It is believed that the current study can be a good reference for the design of fiber reinforced metal tubes or vessels.