Modeling and quantification of corroded surfaces

An overall framework for incorporation of corrosion models into probability of failure models for the system is outlined. The approach uses the results of stochastic kinetic models for corrosion evolution to determine the morphology of the affected region. From this morphology, associated local stresses are calculated. This distribution of local stresses is then used with classical fatigue models to predict system probability of failure. As such, corrosion can then be considered as a generalized damage with a quantifiable damage parameter and a relationship between this parameter and the measurable physical properties of the affected regions.