Numerical Studies of Eddy Current NDE for Small Crack Detection around Fasteners in Multi-Layer Structures.

A series of numerical studies using validated models are presented investigating the influence of probe design and geometric flaw parameters on the eddy current measurement response for the inspection of cracks around fastener holes in multi-layer structures. Multiple quantitative features of the eddy current data were evaluated. The goal of this study is to demonstrate the influence of these design parameters on the ability to resolve the flaw characteristics in the measurement data. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR]