Scatter of a plane elastic wave by a rough crack edge

被引：4

作者：

Borovikov, V. ^{[1
]}

Fradkin, L. ^{[1
]}

机构：

[1] London S Bank Univ, Dept Elect Comp & Commun Engn, London SE1 0AA, England

来源：

RUSSIAN JOURNAL OF MATHEMATICAL PHYSICS | 2009年 / 16卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

Incident Wave; Phase Function; Crack Edge; Directivity Pattern; Polygonal Line;

D O I：

10.1134/S1061920809020034

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：166 / 187

页数：22

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