利用准线 Lamb 波混合技术对板材中的残余应力进行超声波浸入式测试

IF 4.1 2区 材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING
Jingpin Jiao , Lintong Li , He Zhang , Hongtao Lv , Bin Wu , Cunfu He
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引用次数: 0

摘要

残余应力的无损估算一直是工程领域的一大挑战。本文提出了在浸入式超声波测试中测量金属板残余应力的准线 Lamb 波混合法。通过数值模拟研究了激励参数对混波法性能的影响。结果表明,主波的接收位置和周期数会影响该方法的振幅,并推荐了最佳激励参数。利用准线 Lamb 波混合法对两种板状试样进行了超声浸入实验。实验结果表明,所提出的方法能有效测量金属板中的残余应力。浸入式超声波测试能显著减少发射器与试样之间耦合条件不一致对实验结果的影响,因此比传统的接触式测试更可靠。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultrasonic immersion testing of residual stress in plates using collinear Lamb wave mixing technique

Nondestructive estimation of residual stresses has been a major challenge in engineering. Herein, the collinear Lamb wave mixing method is proposed for residual stress measurement in metal plates under immersion ultrasonic testing. Numerical simulations have been conducted to investigate the influences of excitation parameters on the performance of the wave mixing method. The results showed that the receiver position and cycle numbers of primary waves affect the amplitude of the method, and optimal excitation parameters recommended. Ultrasonic immersion experiments are conducted on two types of plate-like specimens using the collinear Lamb wave mixing method. Experimental results showed that the proposed method is effective for measuring the residual stress in metal plates. The immersion ultrasonic testing can significantly reduce the influence of inconsistent coupling conditions between the transmitters and the specimen on experimental results, therefore it is more reliable than conventional contact testing.

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来源期刊
Ndt & E International
Ndt & E International 工程技术-材料科学:表征与测试
CiteScore
7.20
自引率
9.50%
发文量
121
审稿时长
55 days
期刊介绍: NDT&E international publishes peer-reviewed results of original research and development in all categories of the fields of nondestructive testing and evaluation including ultrasonics, electromagnetics, radiography, optical and thermal methods. In addition to traditional NDE topics, the emerging technology area of inspection of civil structures and materials is also emphasized. The journal publishes original papers on research and development of new inspection techniques and methods, as well as on novel and innovative applications of established methods. Papers on NDE sensors and their applications both for inspection and process control, as well as papers describing novel NDE systems for structural health monitoring and their performance in industrial settings are also considered. Other regular features include international news, new equipment and a calendar of forthcoming worldwide meetings. This journal is listed in Current Contents.
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