Finite element modeling of electromagnetic NDT phenomena

Abstract

The development of computer-based defect charact e r i z a t i o n schemes for automated electromagnetic methods o f n o n d e s t r u c t i v e t e s t i n g is demonstrated by comparing predicted results with experim e n t a l v a l u e s f o r p r a c t i c a l e x a m p l e s o f a c t i v e , r e s i d u a l and eddy c u r r e n t NDT s i t u a t i o n s .

Eddy Current Crack Signals in Small Diameter Tubing

“…The principle of this method is to solve the diffusion equaLion through Ule minimizaLion of an energy functional (6,7). This parlicular finite element code was 2-D axisymmelric in nature.…”

Diagnozowanie konstrukcji lotniczych metodą prądów wirowych i metody modelowania sygnałów elektromagnetycznych

“…[4]. Pierwsze prace w tym zakresie były oparte na prostych, dwuwymiarowych modelach i pozwalały uzyskać mapy rozkładów natężenia pola elektromagnetycznego i gęstości prądu [5].…”

Finite element and boundary element analysis of electromagnetic NDE phenomena

“…Modeling of steady state eddy currents has been extensively treated and reported as part of a practical defect characterization scheme [9][10][11] while moving eddy current coils have also been successfully modeled [12][13][14]. A number of three dimensional models have also been reported in the literature using finite ele ments and boundary elements independently [15][16][17][18][19][20].…”