THE ELECTROMAGNETIC-FIELD SCATTERED BY A CRACK IN A PIECEWISE-HOMOGENEOUS MEDIUM - THEORY OF NONDESTRUCTIVE TESTING

Two-dimensional electromagnetic-wave diffraction has been considered for a system composed of a thin defect and a cylinder in a half-space, with the solution obtained by means of integral equations, which are solved by means of mechanical quadratures. The performance in the various integral representations has been examined. The scattered fields have been calculated for various geometrical and physical parameters. Conclusions arc drawn on how the latter affect the excited field. © 1990 Plenum Publishing Corporation.