On the experimental research of long-term hydrostatic performance and lifespan of polyethylene pipe

Long-term hydrostatic (LTH) capacity test up to 10,000 h of polyethylene pipe (PE pipe) was successfully conducted according to Arrhenius theory. It was revealed that in some cases the pipe damage points initiate within the marker line on pipe body, indicating that the addictive of marker line could...

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Bibliographic Details
Published in:Ships and offshore structures 2024-08, Vol.19 (8), p.1235-1239
Main Authors: Chen, Wei, Xiong, Haichao, Chen, Zhang, Wang, Xicheng, Zhang, Jianmin, Xia, Li, Yan, Junwei
Format: Article
Language:English
Subjects:
Arrhenius theory
Ductile-brittle transition
Experimental research
failure mode
Gas polyethylene pipe
Laboratory experimentation
long-term performance
Mechanical properties
Pipes
Polyethylenes
Testing time
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Summary:Long-term hydrostatic (LTH) capacity test up to 10,000 h of polyethylene pipe (PE pipe) was successfully conducted according to Arrhenius theory. It was revealed that in some cases the pipe damage points initiate within the marker line on pipe body, indicating that the addictive of marker line could somehow weaken the mechanical property of pipe base materials. Test pressure test time data was fitted using dual-parameter model under the guidance of ISO9080: 2012, and its serving life was calculated as 28.9 years, ductile-brittle transition point was found at 8456 h. Conclusions drawn from this paper could contribute to understanding the long-term mechanical behaviour of PE pipe.
ISSN:1744-5302
1754-212X
DOI:10.1080/17445302.2023.2237298