电磁声换能器利用瑞利波估算表面裂纹深度

IF 0.8 4区工程技术 Q4 ACOUSTICS

International Journal of Acoustics and Vibration Pub Date : 2017-12-01 DOI:10.20855/IJAV.2017.22.4501

C. He, Peng Deng, Yan Lu, Xiucheng Liu, Zenghua Liu, J. Jiao, Bin Wu

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引用次数: 18

摘要

介绍了一种利用电磁声换能器（EMAT）在俯仰捕获模式下利用瑞利波估算表面裂纹深度的定量表征方法。该方法采用了实验确定的表面裂纹散射瑞利波的反射和透射系数，并将其与基于可变裂纹深度的二维有限元模拟获得的参考曲线进行比较。采用三个具有不同中心频率的EMAT耦合来扩展测量范围，并实现裂纹深度的定量表征。验证了参考曲线和测量结果的可重复性和高精度，显示裂纹深度在0.2–3.0 mm范围内的最大误差为17%。

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Estimation of Surface Crack Depth using Rayleigh Waves by Electromagnetic Acoustic Transducers

A quantitative characterization method is introduced for estimating surface crack depth using Rayleigh waves in pitch-catch mode by electromagnetic acoustic transducers (EMATs). The method employs the experimentally determined reflection and transmission coefficients of Rayleigh waves scattered at a surface crack, which will be compared to the reference curves obtained from two-dimensional finite element method (FEM) simulations based on variable crack depth. Three EMAT couples with different centre frequencies were employed to extend the measuring range, and to implement the quantitative characterization of crack depth. The reference curves and measurement results were verified to be repeatable with great accuracy, which shows a maximum error of 17% with crack depth ranging from 0.2–3.0 mm.

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来源期刊

International Journal of Acoustics and Vibration ACOUSTICS-ENGINEERING, MECHANICAL

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

12 months

期刊介绍： The International Journal of Acoustics and Vibration (IJAV) is the refereed open-access journal of the International Institute of Acoustics and Vibration (IIAV). The IIAV is a non-profit international scientific society founded in 1995. The primary objective of the Institute is to advance the science of acoustics and vibration by creating an international organization that is responsive to the needs of scientists and engineers concerned with acoustics and vibration problems all around the world. Manuscripts of articles, technical notes and letters-to-the-editor should be submitted to the Editor-in-Chief via the on-line submission system. Authors wishing to submit an article need to log in on the IJAV website first. Users logged into the website are able to submit new articles, track the status of their articles already submitted, upload revised articles, responses and/or rebuttals to reviewers, figures, biographies, photographs, copyright transfer agreements, and send comments to the editor. Each time the status of an article submitted changes, the author will also be notified automatically by email. IIAV members (in good standing for at least six months) can publish in IJAV free of charge and their papers will be displayed on-line immediately after they have been edited and laid-out. Non-IIAV members will be required to pay a mandatory Article Processing Charge (APC) of $200 USD if the manuscript is accepted for publication after review. The APC fee allows IIAV to make your research freely available to all readers using the Open Access model. In addition, Non-IIAV members who pay an extra voluntary publication fee (EVPF) of $500 USD will be granted expedited publication in the IJAV Journal and their papers can be displayed on the Internet after acceptance. If the $200 USD (APC) publication fee is not honored, papers will not be published. Authors who do not pay the voluntary fixed fee of $500 USD will have their papers published but there may be a considerable delay. The English text of the papers must be of high quality. If the text submitted is of low quality the manuscript will be more than likely rejected. For authors whose first language is not English, we recommend having their manuscripts reviewed and edited prior to submission by a native English speaker with scientific expertise. There are many commercial editing services which can provide this service at a cost to the authors.