Simulation of Explosive Damage Effect of ATT Warhead on Incoming Torpedo

To assess the damage effect of anti-torpedo torpedo (ATT) warhead on an incoming torpedo, we establish an incoming torpedo model with the finite element analysis software ANSYS LS-DYNA, simulate the explosive damage effect of ATT warhead on an incoming torpedo with different distances and different angles by using the fluid-solid cou-pling algorithm, and obtain the damage radius of ATT warhead, the damage criterion of an incoming torpedo, and the damage laws of an ATT against an incoming torpedo. Simulation results show that deformation and fracture occur more easily on the shell of fuel tank section of an incoming torpedo than on other shells in underwater explosion. This study may benefit the damage effect assessment of an ATT and the research of ATT warhead.