Numerical Simulation of Deep-water Explosion Damage of Ring-ribbed Cylinder

Based on AUTODYN software for deep water explosion ring rib cylinder structure numerical calculations, comparative analysis of the impact of different model building methods on the response of the cylinder structure, and ultimately determine the method of model building, analysed the deformation of the cylinder under different hydrostatic pressure, and investigated the response of the cylinder after the explosion loads under different water depths. The results of the study show that: in the analysis of the response of the cylinder in the deep-water explosion can be achieved through the load boundary conditions on the structure loaded with prestressing; when the shock wave load is kept constant, with the increase of the hydrostatic pressure in the environment, the damage at the centre of the ring-ribbed cylinder shell facing the explosion surface increases.