Research progress on mechanical properties of deep-sea fiber reinforced resin composite cylindrical pressure shells

The fiber reinforced resin composites have enormous development potentials in the field of deep-sea submersible equipment, and become key strategic materials owing to their light-mass and excellent mechanical properties. It should be noted that the pressure shell is an important part to ensure the safety and stability of a deep-sea submersible. Also, it is closely related to the quality requirements and general performances of submersible. This paper mainly focuses on the deep-sea fiber reinforced resin cylindrical pressure shells. In detail, the structural design characteristics, mechanics performance testing and numerical simulations were reviewed. Moreover, the existing problems were pointed out, and it is expected that these can provide the selection basis for the design and mechanical analysis of the deep-sea cylindrical pressure shells in the future.