首页|Pipeline thickness estimation using the dispersion of higher-order SH guided waves

Pipeline thickness estimation using the dispersion of higher-order SH guided waves

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Thickness measurement plays an important role in the monitoring of pipeline corrosion damage.However,the require-ment for prior knowledge of the shear wave velocity in the pipeline material for popular ultrasonic thickness measurement limits its widespread application.This paper proposes a method that utilizes cylindrical shear horizontal(SH)guided waves to estimate pipeline thickness without prior knowledge of shear wave velocity.The inversion formulas are derived from the dispersion of higher-order modes with the high-frequency approximation.The waveform of the example problems is simulated using the real-axis integral method.The data points on the dispersion curves are processed in the frequency domain using the wave-number method.These extracted data are then substituted into the derived formulas.The results verify that employing higher-order SH guided waves for the evaluation of thickness and shear wave velocity yields less than 1％error.This method can be applied to both metallic and non-metallic pipelines,thus opening new possibilities for health monitoring of pipeline structures.

pipeline wall thicknesshigher-order modesSH guided wavesdispersion

代政辰、刘金霞、龙云飞、张建海、Tribikram Kundu、崔志文

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Department of Acoustics and Microwave Physics,College of Physics,Jilin University,Changchun 130012,China

School of Mechanical and Aerospace Engineering,Jilin University,Changchun 130025,China

Department of Civil and Architectural Engineering and Mechanics,University of Arizona,Tucson,Arizona 85721,USA

College of Aerospace and Mechanical Engineering,University of Arizona,Tucson,AZ 85721,USA

State Key Laboratory of Acoustics,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China

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Natural Science Foundation of Jilin Province of ChinaNatural Science Foundation of Jilin Province of ChinaNational Natural Science Foundation of ChinaState Key Laboratory of Acoustics,Chinese Academy of Sciences

20240402081GH20220101012JC42074139SKLA202308

2024

10.1088/1674-1056/ad3033

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(7)
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