Abstract
Roll on-roll off (Ro-Ro) ship is the preferable vessel for public transportation and also as a medium to distribute several commodities. Its operations are a straightforward process but traffic management is quite delicate, especially for cross-route. Moreover, maritime incidents sometimes occur, causing significant casualties and in the case of the Ro-Ro, collision with other ship is a possible threat with the ability to trigger immense damages. This research, therefore, was conducted to assess the structural casualties of a Ro-Ro vessel under collision. This was modelled with respect to a ship involved in a certain incident in Indonesia in the latest decade, and the designed collision problems were calculated using the finite element approach. The collision angle was selected as the main input parameter with the straight collision of angle 90° and oblique collision with different angles applied to the scenario. The results found the collision energy due to structural destruction to have distinct pattern and peak value under oblique cases with lower values observed for straight collision for all scenarios. It is, however, recommended that energy should be taken as an initial parameter in further investigation of structural damage and response contour.
Highlights
Transportation has been playing an important role in human society, and industrial development since the first industrial revolution took place more than two centuries ago
This research was dedicated to investigating structural responses of the roll on-roll off (Ro-Ro) vessel during a series of accidental load designed using a vessel-to-vessel collision with the angle varied in the calculation, and the analysis was conducted through the use of nonlinear finite element (NLFE) analysis
The results obtained indicated internal energy of the oblique collision case to be superior to the T-collision case, and this was verified by observing the damage level of the rupture strain and critical stress
Summary
Transportation has been playing an important role in human society, and industrial development since the first industrial revolution took place more than two centuries ago. Identification of loss and risk during a vessel operation is very important in maritime industries, especially to a company’s financial and insurance policy and misconduct in this aspect has the ability to lead a company to bankruptcy due to the occurrence of certain accidents in the fleet This phenomenon is rising as several accidents in the maritime environment have been proved to be an initial trigger for massive losses such as iceberg-ship impact case of the Titanic [11], large scale oil spill accident of the Sea Empress [12], death toll in the Sewol’s sinking [13], environmental destruction and species extinction after the Exxon Valdez ran aground and spilled oil [14], Halifax explosion accident in Canada with death estimation reached 2000 people [15,16], and massive financial loss for passenger compensation, ship evacuation and environment restoration in grounding case of the Costa Concordia [17]. Fire broke out approximately 400 km off the Isles of Scilly
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