Probabilistic model for corrosion degradation of tanker and bulk carrier

In this paper a process is presented for predicting corrosion at ship ageing structural elements by considering inspection results. The degradation process is described by a detailed corrosion model for each plate and stiffener depending on their category. A category is defined by a specific compartment, location and structural type. This basic model can be further refined by means of influencing factors and is individually adjusted using measurements or information from inspection or survey data, if available. Furthermore, the proposed corrosion model does include a probabilistic representation of uncertainty by a Weibull distribution.