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Changes of Ultrasonic Guided Waves Propagating Through a Bend
Li, Yang; Cai, Guixi; Zhang, Shuangnan; Li, Y (reprint author), Chinese Acad Sci, Inst Met Res, Nondestruct Testing Grp, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
2017-09-01
Source PublicationAMER SOC NONDESTRUCTIVE TEST
ISSN0025-5327
Volume75Issue:9Pages:1142-1149
AbstractPropagation of ultrasonic guided waves within the wall of straight pipe is becoming increasingly understood; however, guided waves within the wall of a curved section of pipe are more complex and less well known. Propagation of a guided wave through pipe bends results in signal distortion and mode conversion. This paper presents simulations that focus on the phenomena arising when guided waves with different central frequencies travel through bends with different angles and radii. A selection of the results is experimentally validated. It is shown that a destructive interference of guided wave signals happens when the combination of the bend radius, bend angle, and central frequency of the incident guided wave signal is favorable. The study also finds that the amplitude of guided wave signals changes periodically with the increasing bend angle.; Propagation of ultrasonic guided waves within the wall of straight pipe is becoming increasingly understood; however, guided waves within the wall of a curved section of pipe are more complex and less well known. Propagation of a guided wave through pipe bends results in signal distortion and mode conversion. This paper presents simulations that focus on the phenomena arising when guided waves with different central frequencies travel through bends with different angles and radii. A selection of the results is experimentally validated. It is shown that a destructive interference of guided wave signals happens when the combination of the bend radius, bend angle, and central frequency of the incident guided wave signal is favorable. The study also finds that the amplitude of guided wave signals changes periodically with the increasing bend angle.
description.department[li, yang ; cai, guixi ; zhang, shuangnan] chinese acad sci, inst met res, nondestruct testing grp, 72 wenhua rd, shenyang 110016, liaoning, peoples r china
KeywordGuided Wave Destructive Interference Bend Transmission Coefficient
Subject AreaMaterials Science, Characterization & Testing
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79113
Collection中国科学院金属研究所
Corresponding AuthorLi, Y (reprint author), Chinese Acad Sci, Inst Met Res, Nondestruct Testing Grp, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Li, Yang,Cai, Guixi,Zhang, Shuangnan,et al. Changes of Ultrasonic Guided Waves Propagating Through a Bend[J]. AMER SOC NONDESTRUCTIVE TEST,2017,75(9):1142-1149.
APA Li, Yang,Cai, Guixi,Zhang, Shuangnan,&Li, Y .(2017).Changes of Ultrasonic Guided Waves Propagating Through a Bend.AMER SOC NONDESTRUCTIVE TEST,75(9),1142-1149.
MLA Li, Yang,et al."Changes of Ultrasonic Guided Waves Propagating Through a Bend".AMER SOC NONDESTRUCTIVE TEST 75.9(2017):1142-1149.
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