Underwater Blast Load And Analysis Of Response Of Typical Ship Structure Under Impact

This paper is mainly about the dynamics response of anisotropic composite ship structure subject to underwater blast.Firstly, the process of shock wave in infinite water is simulated by commercial simulation program ANSYS/LS-DYNA. The peak value of shock wave is also obtained.It is compared with that calculated by experienced formula. As a result, ANSYS/LS-DYNA is usable in simulation of underwater blast. Then, columniform detonator blast under water is simulated. The explosive power of several detonating model are compared to find the most powerful one.Afterwards, a subsection of a ship is constructed, which dynamics response subject to underwater blast is simulated. Respectively set the material of the ship as composite material and steel, and let the weight of two materials almost the same.Finally, the dynamics response tubes in stiffen cylinder is simulated. Several supported model was simulated and compared to find the best one.