Corrosion Waste Impact on Ship Girder Strength Through Life Cycle

Abstract

The paper deals with analyzing corrosion waste impact on ship girder strength through the life cycle.Evaluation of corrosion impact on ship strength is important because in some loading cases the ships are in overloaded condition. It is assumed that corrosion wear varies from 0 to 60%. Reduction of their transverse strength in combination of bad weather or sudden storms leads to cargo lost, ship damage and loss of human lives. Strength and plating elements bending capacity are evaluated by ship midsection model development and compared with the same for a new building ship. Helped by the relation between permissible and actual bending moment, plate bending efficiency is evaluated. Ultimate ship girder strength in cases with corrosion waste of more than 30% is evaluated too.