Experiment and Numerical Simulation on Collision of Box Girder Hull Model in Towing Tank

Abstract

Ship collision or stranding will not only cause great economic loss, but also cause serious damage to marine environment and ecological balance. In this paper, an investigation on external mechanism of cargo ship under collision scenariothrough model testing methods are conducted in towing tank. The effects of striking velocity and striking angle on the structural damage, energy dissipation and collisionforce are analyzed. In addition, explicit LS-DYNA finite element solver is also employed to simulate the collision scenario, and corresponding comparisons are made. It is shown that the colliding force will decrease with the striking angle decreasing, while the colliding force and indentation depth both increase with the striking velocity increasing. The experimental data can provide support for carrying out the simulation of the ship collision in accuracy and reliability.