疲劳表面微裂纹的非线性瑞利波检测模拟与实验。

IF 3.8 2区物理与天体物理 Q1 ACOUSTICS

Ultrasonics Pub Date : 2024-10-28 DOI:10.1016/j.ultras.2024.107500

Ne Liu , Shuyun Cheng , Jiaqi Fan , Ying Zhu , Ning Yang , Yongdong Pan

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引用次数: 0

摘要

非线性超声波检测是一种利用超声波与疲劳损伤相互作用产生的高次谐波来评估材料特性的方法。本文在模拟和实验的基础上，讨论了实验测量和模拟分析之间的差异。模拟和实验的结果都表明，非线性系数会增大，在波长为 0.3λ 附近达到最大值，然后在一定程度上减小并趋于稳定。模拟与实验的区别在于非线性系数最大值对应的裂纹深度以及非线性系数与峰值之间的相对变化不同。根据模拟结果和实验测量结果分析了造成差异的原因，为进一步研究非线性瑞利波的评价机理提供了可靠的依据。

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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Simulation and experimentation of nonlinear Rayleigh wave inspection of fatigue surface microcracks

The nonlinear ultrasonic inspection is a method that the higher harmonics generated by the interaction of ultrasound and fatigue damage, which is used to evaluate material properties. In this paper, the difference between experimental measurement and simulation analysis was discussed, based on the simulation and experimentation. The results of simulation and experimentation both show that the nonlinear coefficient increases, reaches the maximum near the wavelength of

0.3 λ

, and then decreases to a certain extent and stabilizes. The difference between the simulation and the experimentation is that the crack depth corresponding to the maxima of the nonlinear coefficient and the relative variation between the nonlinear coefficient and the peak are different. And the causes of the difference were analyzed according to the simulation results and experimental measurements, which provides a reliable basis for the further study of the evaluation mechanism of the nonlinear Rayleigh wave.

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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.