Title :
A perturbation approach for the modelling of eddy current nondestructive testing problems with differential probes
Author :
Sabariego, Ruth V. ; Dular, Patrick
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Liege Univ.
Abstract :
A perturbation technique applied to the finite element modelling of eddy-current nondestructive testing (ECNDT) problems is developed for taking into account differential probes and multiply connected domains. It concerns a h-conform formulation. The source term of the formulation is directly determined from the unperturbed field and the voltage change due to the presence of the flaw is calculated by performing an integral over the defect and a layer of elements in the exterior domain that touch its boundary
Keywords :
eddy current testing; finite element analysis; perturbation techniques; probes; differential probes; eddy current nondestructive testing problems; finite element modelling; h-conform formulation; multiply connected domains; perturbation approach; Coils; Computer science; Eddy currents; Finite element methods; Integral equations; Nondestructive testing; Perturbation methods; Probes; Surface cracks; Voltage;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1632808
