Toward the Reconstruction of Stress Corrosion Cracks Using Benchmark Eddy Currents Signals

This paper concerns numerical modelling of stress corrosion cracks in Inconel600 plates using experimental data of benchmark eddy current measurements. The problem is considered from a broad perspective, in view of its integration with algorithms for solving the inverse problem. The accuracy and efficiency have been particularly considered. The computational technique applied for modeling the crack is based on an integral formulation of the eddy current problem. The cracks are treated as either penetrable volumetric or zero-thickness (surface) defects enabling some electric current flowing through them. Real stress corrosion rack have been considered in this study where measured and simulated eddy Current signals due to the cracks are presented.