| abstract |
A pressure vessel ( 2 ) for the storage of fluid has a core ( 10 ) made of metal or polymer and is wrapped either completely or partially from outside with a high strength fibers ( 21, 22 ) for reinforcement wherein one of the reinforcing fibers is a metal wire ( 21 ) of a single filament or cables of multi filaments having strength from 2000 MPa to 6000 MPa. The wire has a plastic ductility of over 20% in reduction in area (RA) at tensile fracture. The metal wire ( 21 ) is made of steel or nickel or titanium or their respective alloys. The core ( 10 ) of the vessel ( 2 ) is first wrapped with a resin covered ceramic fibers such as carbon, fiberglass and subsequently wrapped with the metal wire ( 21 ) with or without other fibers ( 22 ). The metal wires ( 21 ) can be of different diameters in parallel or cabled forms. |