doi: 10.1685/2010CAIM539

Numerical algorithms for an inverse problem of corrosion detection

Giulia Deolmi, Fabio Marcuzzi, Sergio Marinetti, Silvia Poles

Abstract


This paper describes a numerical strategy for the detection of hidden corrosion in an internal, unobservable surface of a material object, whose geometry and material properties are known. Since the corrosion is not directly measurable, it is estimated using a nondestructive infrared thermographic inspection. The a priori knowledge about the material object allows us to use a physical-mathematical model to support the estimate. Given a suitable parametrization of the depth of the real corroded profile, the numerical algorithm performs a nonlinear estimate of the corroded model domain parameters, adopting a predictor-corrector scheme.


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Communications in Applied and Industrial Mathematics
ISSN: 2038-0909