Abstract: This study achieves development of new marine composite high pressure vessel, by reinforcing the in-service steel vessel using 10mm-thicknesss CFRC circumferencially. And hydrostatic test, blast test, and fitague test are carried out, referring to correlative standards. Results show that the composite materials share the hoop stress preferably, the blast pressre arrives 125MPa, and the vessel don’t break after 0~40MPa, 12000 times filling fatigue test. Experiments reveal that the composite vessel is designed reasonably, has high safe reliability, and it is a better technical method to develop the new marine high pressure vessel.

Key words: high pressure vessel, composite material, hydrostatic test, blast test, fitague test