Improvement and Validation of an Analytical Code for Ship Collisions Based on Super-Element Method

Abstract

In recent years, inland navigation is increasing its contribution to transportation sector. Besides, with the increasing construction technology and knowledge about routes, it is possible to build bigger vessels. As a consequence, possible amount of the spillage in case of cargo tank rupture is increasing as well. Day by day new rules and precautions are taking effect in order to prevent that. However it is impossible to decrease the possibility of an accident to zero.

Nonetheless especially about vessels which are carrying dangerous goods, possibility of cargo spillage must be kept in minimum level. ADN Regulations guide the construction of inland waterway vessels. ADN Regulations recommend to determine the probability of tank rupture in a collision event by finite element analysis which is time consuming and indigent to expertise. On the other hand thanks to cooperation of BV and ICAM, an analytical tool which is called SHARP was developed in order to determine the tank rupture probability.

In a previous thesis which was studied by Sone Oo, SHARP was compared to non-linear finite element explicit code, LS-Dyna in the scope of ADN Regulations. In this paper, some of the major deficiencies which were revealed by former study will be studied and the analytical code of SHARP will be improved in consideration of results