TY  - JOUR
AB  - In the ideal crack model (negligible thickness and an impenetrable barrier to electric current) in eddy‐current testing frame, the field‐flaw is equivalent to a current dipole layer on its surface. This dipole density is the solution of an integral equation with a hyperstrong kernel. This model has shown its efficiency, as well the computing accuracy, as for the CPU time. Furthermore, the case of a current leakage across crack was considered by introducing an equivalent conductivity of the crack. This paper aims at simulating a local varying conductivity. In particular, we focus on a constant piecewise conductivity. In this last case, because of the presence of the hypersingular kernel in the equation, the numerical scheme using the ideal case has to be modified.
VL  - 23
IS  - 4
SN  - 0332-1649
DO  - 10.1108/03321640410553328
UR  - https://doi.org/10.1108/03321640410553328
AU  - Beltrame Ph.
PY  - 2004
Y1  - 2004/01/01
TI  - Modelisation of thin cracks with varying conductivity in eddy‐current testing
T2  - COMPEL - The international journal for computation and mathematics in electrical and electronic engineering
PB  - Emerald Group Publishing Limited
SP  - 894
EP  - 903
Y2  - 2024/04/26
ER  -