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.

fYear

0

fDate

0-0 0

Firstpage

16

Lastpage

16

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on

Conference_Location

Miami, FL

Print_ISBN

1-4244-0320-0

Type

conf

DOI

10.1109/CEFC-06.2006.1632808

Filename

1632808