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This paper presents an inverse problem methodology in the domain of non-destructive testing, and more precisely eddy-current testing. Our objective is to use a precise but expensive-to-evaluate model of the electromagnetic induction phenomenon in a conductive material and to estimate the characteristics of a flaw by minimization of a regularized criterion… (More)

- Sándor Bilicz, Marc Lambert, Szabolcs Gyimothy, Jozsef Pavo, Grégoire PICHENOT
- 2010

One of the main challenges in Eddy Current Testing (ECT) is the solution of the inverse problem, i.e., the determination of the defect properties knowing the measured data. To this end, many approaches and mathematical tools have been proposed. The so-called adaptive database-method has recently been developed. Its main idea is to store corresponding… (More)

- Imre Kiss, Zsolt Badics, Szabolcs Gyimothy, Jozsef Pavo
- 2012 IEEE Conference on High Performance Extreme…
- 2012

The utilization of Graphical Processing Units (GPUs) for the element-by-element (EbE) finite element method (FEM) is demonstrated. EbE FEM is a long known technique, by which a conjugate gradient (CG) type iterative solution scheme can be entirely decomposed into computations on the element level, i.e., without assembling the global system matrix. In our… (More)

A classical way to solve the inverse problem of defect characterization is to construct an iterative loop which tries to achieve the best resemblance between the measured data and the output of an appropriate simulator of the considered experiment. If the similarity of these signals is best, one can say that a solution for the defect characterization… (More)

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