Boundary Integral Equation Measurement Model for the Electric Current Injection Method of Nondestructive Evaluation
A.P. Ewing, C. Hall Barbosa, T.A. Cruse, A.C. Bruno,and J.P. Wikswo, Jr.
COMPUMAG - The 11th Conference on the Computation of Electromagnetic Fields, PA4-6: 89-90 (1997)
A measurement model was developed to simulate the magnetic field obtained by scanning a magnetometer over a flawed plate carrying a dc current. By using a boundary integral equation formulation, arbitrary plate/flaw shapes can be modeled, which provides a flexibility not given by analytical solutions, which are limited to only a few geometries. Also, as only 1-D boundary elements are required, this approach has significant computational advantage over finite element methods. An experimental validation has been accomplished, and the 6% difference between the peak-to-peak values for the experimental and modeled results is within the expected experimental error.
The following reprint from COMPUMAG - The 11th Conference on the Computation of Electromagnetic Fields,Boundary Integral Equation Measurement Model for the Electric Current Injection Method of Nondestructive Evaluation, A.P. Ewing, C. Hall Barbosa, T.A. Cruse, A.C. Bruno, and J.P. Wikswo, Jr., PA4-6: 89-90, ©1997 is made available by permission of the publisher.
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