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Study on the Assessment of Defects in a Sewage Pipe by Using Ultrasonic Waves
New Phys.: Sae Mulli 2018; 68: 363~368
Published online March 30, 2018;
© 2018 New Physics: Sae Mulli.

Yeon-Su LIM1, Yun-Taek YEOM1, Hak-Joon KIM1, Sung-Jin SONG1, Woo-Young KANG2, Sung-Duk KWON*3

1 School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea
2 EPS Engineering, Anyang 13930, Korea
3 Department of Physics, Andong National University, Andong 36729, Korea
Correspondence to:
Received December 15, 2017; Revised January 9, 2018; Accepted January 11, 2018.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
A polyethylene (PE) pipe is light, easy to install, and easy to recycle. Therefore, it is widely used as a sewage pipe. Because human and material damage is caused by the old damaged sewer pipes in our cities, an efficient inspection system must be introduced. Currently, detecting defects in pipes is mainly limited to visual inspection, which cannot be used to identify defects in pipes that transport liquid substances, such as water in particular. This study's objectives are to develop a defect-detection algorithm by comparing the results from an ultrasonic wave propagation simulation using the finite element method with those from an ultrasonic experiment on an artificial defect specimen and to use that algorithm to develop an ultrasound inspection system for assessing the integrity of PE sewer pipes.
PACS numbers: 43.35.+d
Keywords: PE pipe, Ultrasonic simulation, Defect detecting system, Algorithm

July 2018, 68 (7)
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