基于滞后非线性的高循环疲劳损伤评估（使用超声导波

IF 3.8 2区物理与天体物理 Q1 ACOUSTICS

Ultrasonics Pub Date : 2024-11-20 DOI:10.1016/j.ultras.2024.107519

Tao Zhou, Chaolong Xue, Xunjie Lv, Bing Li

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引用次数: 0

摘要

本文介绍了一种利用非线性超声导波检测和评估铝合金板高循环疲劳损伤的新方法。通过高循环疲劳测试，利用超声导波测量技术制作并评估了不同疲劳损伤程度的试样。时间-频率分析的整合有效地减少了波色散和共振效应的影响，建立了可靠的工作频率带宽。结果表明，由滞后非线性引起的奇次谐波分量的振幅与疲劳裂纹长度呈正相关，而与试样共振频率呈反相关。结果证实了这种方法在早期疲劳损伤检测方面的高灵敏度和准确性，为工程结构的无损评估提供了重要进展，并为结构故障预防奠定了基础。

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High-cycle fatigue damage evaluation based on hysteresis nonlinearity using ultrasonic guided waves

This paper presents a novel approach utilizing nonlinear ultrasonic guided waves for the detection and evaluation of high-cycle fatigue damage in aluminum alloy plates. Through high-cycle fatigue testing, specimens with varying degrees of fatigue damage were created and evaluated using ultrasonic-guided wave measurement technology. The integration of time–frequency analyses effectively reduced the impact of wave dispersion and resonance effects, establishing a reliable operational frequency bandwidth. The results identified a positive correlation between the amplitude of odd harmonic components caused by hysteresis nonlinearity and fatigue crack length, while an inverse correlation was observed with specimen resonance frequency. The results confirm the high sensitivity and accuracy of this approach for early fatigue damage detection, offering a significant advancement in the non-destructive evaluation of engineering structures and a foundation for structural failure prevention.

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来源期刊

Ultrasonics 医学-核医学

CiteScore

7.60

自引率

19.00%

发文量

186

审稿时长

3.9 months

期刊介绍： Ultrasonics is the only internationally established journal which covers the entire field of ultrasound research and technology and all its many applications. Ultrasonics contains a variety of sections to keep readers fully informed and up-to-date on the whole spectrum of research and development throughout the world. Ultrasonics publishes papers of exceptional quality and of relevance to both academia and industry. Manuscripts in which ultrasonics is a central issue and not simply an incidental tool or minor issue, are welcomed. As well as top quality original research papers and review articles by world renowned experts, Ultrasonics also regularly features short communications, a calendar of forthcoming events and special issues dedicated to topical subjects.