Scatter of a plane elastic wave by a rough crack edge |
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| Authors: | V. Borovikov L. Fradkin |
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| Affiliation: | (1) Department of Electrical, Computer, and Communications Engineering, London South Bank University, 103 Borough Road, London, SE1 0AA, UK |
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| Abstract: | The aim of this paper is to investigate the effect of roughness of the crack edge on the reliability of ultrasonic NDE (nondestructive evaluation). The rough crack face has been modeled by earlier authors as a mosaic of large triangular facets and the effect of this roughness has been simulated using the Kirchhoff approximation. We now augment this model by the rough crack edge that is a polygonal line. We then model the scattered field using the Isakovich approach, originally developed for modeling scatter from rough surfaces, also with the help of the Kirchhoff approximation. |
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