Progress in Three-Dimensional Non-Destructive Assessment of Real Cracks from Eddy Current Testing Signals

Progress in Three-Dimensional Non-Destructive Assessment of Real Cracks from Eddy Current Testing Signals

Blog Article

Enhancement in three-dimensional non-destructive Accessories evaluation of real cracks from two-dimensional simulated eddy current testing signals is reported in the paper.A new uniform eddy current testing probe is employed for the inspection.All three spatial components of the perturbation electromagnetic field are acquired during two-dimensional scan of the probe.The ECT signals due to partially conductive cracks are simulated by a fast forward FEM-BEM solver using a database.

Two crack models are proposed for the inversion using the tabu search stochastic method.The former model has a cuboid shape Engraved Wood Plaque and the latter one reflects a more complex geometry.Numerical results of the three-dimensional reconstruction of partially conductive cracks from simulated two-dimensional signals are presented and discussed in the paper.