Changes of Ultrasonic Guided Waves Propagating Through a Bend

IMR OpenIR

	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
发表期刊	AMER SOC NONDESTRUCTIVE TEST
ISSN	0025-5327
卷号	75 期号:9 页码:1142-1149
摘要	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.; 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.
部门归属	[li, yang ; cai, guixi ; zhang, shuangnan] chinese acad sci, inst met res, nondestruct testing grp, 72 wenhua rd, shenyang 110016, liaoning, peoples r china
关键词	Guided Wave Destructive Interference Bend Transmission Coefficient
学科领域	Materials Science, Characterization & Testing
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79113
专题	中国科学院金属研究所
通讯作者	Li, Y (reprint author), Chinese Acad Sci, Inst Met Res, Nondestruct Testing Grp, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 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.