Home Journals Articles Updates About
CN
image
收藏切换
Nonlinear Ultrasonic Testing Technology for Mechanical Property Degradation of Gas PE Pipeline
收藏切换
PDF
Dong-kun TU1, 2, Zhen-hua CHEN1, *, Qi ZHANG3, Jun-yan ZHANG2, Wei CHENG3, Yu-ting FANG3, Meng-juan DAI4
Science Technology and Engineering | 2025, 25(18) : 7551 - 7557
Less
收藏切换
Science Technology and Engineering | 2025, 25(18): 7551-7557
• Papers·General Industrial Technology •
Nonlinear Ultrasonic Testing Technology for Mechanical Property Degradation of Gas PE Pipeline
Full
Dong-kun TU1, 2, Zhen-hua CHEN1, *, Qi ZHANG3, Jun-yan ZHANG2, Wei CHENG3, Yu-ting FANG3, Meng-juan DAI4
Affiliations
  • 1 Nanchang Hangkong University School of Instrument Science and Opto-Electronic Engineering, Nanchang 330063, China
  • 2 Jiangxi Hongdu Aviation Industry Group, Nanchang 330000, China
  • 3 Jiangxi Inspection and Certification General Institute of Special Equipment Testing Research Institute, Nanchang 330200, China
  • 4 Guangxi Xinchen Special Equipment Testing Co., Ltd., Nanning 530001, China
Published: 2025-06-28 doi: 10.12404/j.issn.1671-1815.2406436
Outline
收藏切换

The degradation of mechanical properties of PE pipe materials caused by hot oxygen aging will inevitably reduce the service life of the pipe, which is a serious hidden danger to social and economic development and people’s life and property safety. A nonlinear ultrasonic evaluation method for thermo-oxygen aging pipes was proposed. The nonlinear ultrasonic detection signals of PE pipes were extracted by building a nonlinear ultrasonic detection system for water immersion, and a correlation model between the characteristic parameters of nonlinear ultrasonic detection and elongation at break and fracture stress was established. The nonlinear ultrasonic detection mechanism was revealed by observing the micro-structure changes of PE pipes after aging. The experimental results show that the elongation at break and profit at break of PE pipe materials decrease with the increase of the nonlinear coefficient. The surface micro-cracks, holes and folds formed after the aging of the pipe are the main reasons for the mechanical degradation of the pipe and the increase of the nonlinear ultrasonic detection coefficient. The nonlinear coefficient can be used to evaluate the mechanical degradation of the pipe caused by thermal oxygen aging.

polyethylene pipe  /  thermal aging  /  nonlinear ultrasonic coefficient  /  mechanical property
Dong-kun TU, Zhen-hua CHEN, Qi ZHANG, Jun-yan ZHANG, Wei CHENG, Yu-ting FANG, Meng-juan DAI. Nonlinear Ultrasonic Testing Technology for Mechanical Property Degradation of Gas PE Pipeline[J]. Science Technology and Engineering, 2025 , 25 (18) : 7551 -7557 . DOI: 10.12404/j.issn.1671-1815.2406436
Appendix
Less
Year 2025 volume 25 Issue 18
PDF
124
56
Cite this Article
BibTeX
Article Info
doi: 10.12404/j.issn.1671-1815.2406436
  • Receive Date：2024-08-27
  • Online Date：2025-12-17
  • Published：2025-06-28
Article Data
Affiliations
History
  • Received：2024-08-27
  • Revised：2025-04-01
Funding
Affiliations
    1 Nanchang Hangkong University School of Instrument Science and Opto-Electronic Engineering, Nanchang 330063, China
    2 Jiangxi Hongdu Aviation Industry Group, Nanchang 330000, China
    3 Jiangxi Inspection and Certification General Institute of Special Equipment Testing Research Institute, Nanchang 330200, China
    4 Guangxi Xinchen Special Equipment Testing Co., Ltd., Nanning 530001, China
References
Share
https://castjournals.cast.org.cn/joweb/kxjsygc/EN/10.12404/j.issn.1671-1815.2406436
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House