Dynamic impact response and residual strength of container ship under dropped object

Abstract

This study aims to present numerical investigations on container ships’ residual longitudinal ultimate strength subjected to dropped container collisions. First, the commercial software ABAQUS was applied. The accuracy and reliability of the proposed numerical analyses were established by comparing the numerical results with the experimental results. Next, parametric studies were carried out on actual container ships to assess the degree of loss of the ship’s longitudinal strength in two dangerous situations a ship sagging and hogging. The effects of parameters including drop heigh and impact angles on the ultimate longitudinal strength of the ship have been investigated. The results present in this study can be applied to predict the residual longitudinal strength of dropped container collisions on a container ship. It is also useful for the initial design stage of ship structures in case of collision incidents.