Numerical Study on Influencing Factors of Dynamic Response of Cylindrical Shell Subjected to Deep Water Blast Wave

Numerical investigation was carried out on a cylindrical shell subjected to deep water blast wave by using ABAQUS software package. The simulation contained static analysis by using ABAQUS/Standard and dynamic analysis by using ABAQUS/Explicit, and the analysis result of the former was imported into the latter as the initial condition, and then the influencing factors of dynamic response of cylindrical shell were identified. The calculated results indicated that the dynamic response of cylindrical shell was influenced by depth, orientation of explosion and prestress. The damage and distortion of cylindrical shell increases with depth, and the velocity-time history of cylindrical shell particle becomes smoother as the depth increases. The dynamic response to different orientations of explosion is distinct. Prestress leads to severe damage and distortion of the cylindrical shell, which also relates to orientation of explosion. Research results are valuable in evaluating the vulnerability of submarines.