Linking Acoustic emission signals to fatigue crack growth in metallic Materials: A new approach for structural health monitoring

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-03-23 DOI:10.1016/j.apacoust.2025.110689

Jialin Cui , Xianqiang Qu , Chunwang Lv , Jinbo Du

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引用次数: 0

Abstract

The stability and lifespan prediction of metallic materials under high stress and harsh environments are critical issues in modern engineering structure design. This study aims to explore the acoustic emission (AE) characteristics of metallic materials under stress conditions through experimental and theoretical analysis. Fatigue tensile experiments were conducted to systematically analyze the AE signals of various metallic materials, and numerical models were developed to predict the AE response. The findings demonstrate that AE technology can identify typical signal characteristics of materials during the stress process, with a significant correlation between the number of AE events and the degree of damage, and can accurately locate damage positions. These insights reveal the intrinsic relationship between AE signals and material damage, highlighting the broad application prospects of AE technology in structural health monitoring. The results provide a theoretical foundation and practical guidance for the health monitoring of metallic materials, contributing to the safety and reliable operation of structures.

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连接声发射信号与金属材料疲劳裂纹扩展：一种结构健康监测的新方法

金属材料在高应力和恶劣环境下的稳定性和寿命预测是现代工程结构设计中的关键问题。本研究旨在通过实验和理论分析探讨金属材料在应力条件下的声发射特性。通过疲劳拉伸试验，系统分析了各种金属材料的声发射信号，建立了声发射响应的数值模型。研究结果表明，声发射技术可以识别材料在应力过程中的典型信号特征，声发射事件数与损伤程度之间存在显著相关性，可以准确定位损伤位置。这些发现揭示了声发射信号与材料损伤之间的内在联系，凸显了声发射技术在结构健康监测中的广阔应用前景。研究结果为金属材料健康监测提供了理论基础和实践指导，有助于结构安全可靠运行。

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 Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.