The invention discloses an
underwater pressure-resistant shell with heterogeneous connection of a hemispherical
metal end socket and a composite
barrel. The
underwater pressure-resistant shell comprises a
metal end socket, a connecting structure and a
composite material barrel, the
metal end socket and the connecting structure are integrally formed and manufactured, the connecting structure is provided with an annular
flange, and a plurality of bosses are arranged in the circumferential direction of the annular
flange at equal intervals; the
composite material barrel comprises a grid rib inner layer and an annular winding layer, the grid rib inner layer is connected with the metal end socket through a connecting structure, and the annular winding layer is arranged on the outer side of the grid rib inner layer. According to the
underwater pressure-resistant shell, the thought of'division and treatment 'is adopted, the metal end socket, the grid rib inner layer and the annular winding layer bear bending,
axial pressure and annular pressure respectively, and a continuous
fiber winding connection method is adopted, so that stress is more uniformly distributed in fibers; and in addition, a connection mode of combining macroscopic mechanical
interlocking and microcosmic interface
interlocking is adopted, the overall strength and rigidity of the structure and the reliability and sealing performance of connection are improved, and meanwhile the lightweight level of the overall structure is guaranteed.