Abstract 

As part of an extensive conversion project, the hull structures of a luxury cruise vessel have been reinforced to meet IC Ice Class notation. Because of the age of the vessel and the extent of modification needed to meet IC notation, an alternative solution, in the form of doubler plates achieving equivalent plate thickness, has been agreed with Class to satisfy applicable Ice Class structural requirements.

This study presents the FEM structural evaluation of this alternative arrangement, run in comparison to standard
arrangements.

Specific focus has been given in the evaluation of local structural response to ice pressure load in way of Ice Belt.