This study investigates the manufacturing and testing of conformable carbon fiber-reinforced polymer tanks with integrated continuous fiber-reinforced tension struts for hydrogen storage applications. Two demonstrator tanks were manufactured using 3D-printed core structures combined with wet filament winding and hand lay-up processes. While the concept demonstrated mechanical integrity under hydrostatic loading, leakage at the interface between the CFRP and aluminum boss, as well as poor laminate compaction in flat regions, revealed existing challenges. The manual forming of the strut ends was time-consuming and resulted in high variability in joint strength. These results highlight the potential of strut reinforcement while emphasizing the need for improved laminate compaction and enhanced strut–wall connection to enable practical applications of conformable composite tanks.     «

This study investigates the manufacturing and testing of conformable carbon fiber-reinforced polymer tanks with integrated continuous fiber-reinforced tension struts for hydrogen storage applications. Two demonstrator tanks were manufactured using 3D-printed core structures combined with wet filament winding and hand lay-up processes. While the concept demonstrated mechanical integrity under hydrostatic loading, leakage at the interface between the CFRP and aluminum boss, as well as poor la...     »