Ultrasound real-time imaging of crack propagation during ultrasonic fatigue tests

IF 3.8 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2026-10-12 DOI:10.1063/5.0347304

R. Delalande,M. Ducousso,E. Monteiro,N. Ranc

引用次数: 0

Abstract

This Letter describes a real-time surface inspection method based on ultrasonic synthetic imaging using Rayleigh waves. The proposed method can be employed to monitor crack propagation during ultrasonic fatigue tests. The setup, which is highly sensitive to cracks, enables the imaging of a large surface (tens of mm2), with spatial resolutions of several tens of micrometers and an imaging frequency of up to 50 frames per second. The micrometric resolution allows cracks to be investigated at the grain level, while the sample imaging enables high-velocity crack propagation to be accurately resolved. These two domains have rarely been investigated to date because of experimental limitations. This work paves the way for a new type of laboratory-scale fatigue monitoring based on crack propagation, leading to better comprehension of the associated physical phenomena.

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超声疲劳试验中裂纹扩展的超声实时成像

本文描述了一种基于瑞利波超声合成成像的实时表面检测方法。该方法可用于超声疲劳试验中裂纹扩展的监测。该装置对裂缝高度敏感，可以对大表面（几十平方毫米）进行成像，空间分辨率为几十微米，成像频率高达每秒50帧。微米级的分辨率可以在晶粒水平上研究裂纹，而样品成像可以精确地解决高速裂纹扩展问题。由于实验的限制，这两个领域迄今为止很少进行研究。这项工作为基于裂纹扩展的新型实验室规模疲劳监测铺平了道路，从而更好地理解相关的物理现象。

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

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.