ABSTRACT
Ferry Sewol capsized and sank down to the bottom in the sea water due to the rapid turning for the several reasons, such as lack of stability and poor lashing, or due to the external forces. The objective of this study is to figure out the cause of damage based on the thorough investigation of its inside and outside damage after being salvaged on the ground. Its deck of stern left side fell down the bottom in the seawater with around 158° lateral incline, and its left side hit the bottom in the seawater right after the top of chimney was crashed during its bow subsiding. Its left side was damaged with some cracks, its cabins and passageways were also damaged and overlapped, and its left side of strong cargo deck was folded. In this study, full-scale ship flooding and sinking simulation was carried out using Marine Accident Integrated Analysis System (MAIAS; highly advanced M&S system of Fluid-Structure Interaction (FSI) analysis technology), including total cargos.
