Crest of the Royal National Institution of Naval Architects - Click to return to the homepage



Marintec_New_July_December 2022


Palfinger August 2022

IJME 288

Paper title: Quantitative Risk Assessment for Collisions Involving Double Hull Oil Tankers



S A M Youssef, Ship and Offshore Research Institute, Pusan National University, Busan, Korea (and Marine Engineering Technology Department, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt)
S T Ince, Ship and Offshore Research Institute, Pusan National University, Busan, Korea (and Naval Architecture and Marine Engineering Department, Yildiz Technical University, Istanbul, Turkey)
Y S Kim and J K Paik, Ship and Offshore Research Institute, Pusan National University, Busan, Korea
F Chang, Lloyd’s Register, London, UK
M S Kim, Lloyd’s Register Asia, Busan, Korea


In recent decades, the safety of ships at sea has become a major concern of the global maritime industries. Ships are rarely subject to severe accidents during their life cycle. Collision is one of the most hazardous accidents, with potentially serious consequences such as the loss of human life, structural damage and environmental damage, especially if large tankers, LNG and/or nuclear-powered vessels are involved. This study presents a Quantitative Risk Assessment (QRA) for double hull oil tankers that have collided with different types of ships. The methodology used to perform the QRA is based on the International Maritime Organization’s (IMO) definition of a Formal Safety Assessment (FSA). Using probabilistic approaches, ship-ship collision scenarios are randomly selected to create a representative sample of all possible scenarios. The collision frequency is then calculated for each scenario. As this is a virtual experiment, the LS-DYNA nonlinear finite element method (NLFEM) is used to predict the structural consequences of each scenario selected. In addition, the environmental consequences are estimated by calculating the size of each scenario’s oil spill. To assess the economic consequences, the property and environmental damages are calculated in terms of monetary units. The total risk is then calculated as the sum of the resultant structural and environmental damages. Exceedance curves are established that can be used to define the collision design loads in association with various design criteria.


Transactions RINA, Vol 156, Part A2, International Journal Maritime Engineering, Apr-Jun 2014 

DOI Number

DOI No: 10.3940/rina.ijme.2014.a2.288

Search and Order IJME papers

All International Journal of Maritime Engineering (IJME) papers are listed in the RINA Publications Database. You can search the database by author name and paper title. Publications may be ordered and paid for online. Other publications are also listed, some of which may be downloaded free of charge. Follow the link to Search Publications & Order.

RINA membership

Teinbridge Propeller

Euronaval Apr - Oct 2022

Herbert Engineering

Uni Stratchclyde June 2021

Metstrade May 2022