Elastic-Wave Scattering by a Plane Crack: Application of Flaw Detection

IF 0.6 4区物理与天体物理 Q4 MECHANICS

Doklady Physics Pub Date : 2023-12-25 DOI:10.1134/s1028335823030011

N. P. Aleshin, L. Yu. Mogilner

引用次数: 0

Abstract

The 3D problem of elastic wave scattering by a crack in the form of a half-plane in an elastic medium is considered. It is noted that the previously published solutions do not fully cover the issues relevant to ultrasonic flaw detection, for example, detecting transverse cracks in welds. The proposed solution is made by the Wiener–Hopf technique. It is shown that scattered longitudinal and transverse waves can be generally written in closed form. Some features of the identification of the tip of transverse cracks are noted, including scattering features during sonication of cracks along their surface and the influence of critical angles.

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平面裂缝的弹性波散射：缺陷检测的应用

摘要研究了弹性介质中半平面形式裂纹对弹性波散射的三维问题。研究指出，以前公布的解决方案并没有完全涵盖超声波探伤的相关问题，例如检测焊缝中的横向裂纹。所提出的解决方案采用了 Wiener-Hopf 技术。结果表明，散射纵波和横波一般可以用封闭形式写出。还指出了识别横向裂纹尖端的一些特征，包括裂纹表面声波处理过程中的散射特征和临界角的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Doklady Physics 物理-力学

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

4-8 weeks

期刊介绍： Doklady Physics is a journal that publishes new research in physics of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.