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

被引:0
|
作者
Chen, Wei [1 ,2 ]
Xiong, Haichao [3 ]
Chen, Zhang [1 ]
Wang, Xicheng [4 ]
Zhang, Jianmin [4 ]
Xia, Li [1 ]
Yan, Junwei [1 ]
机构
[1] Zhejiang Acad Special Equipment Sci, Hangzhou 310020, Peoples R China
[2] Key Lab Special Equipment Safety Testing Technol Z, Hangzhou 310020, Peoples R China
[3] PowerChina Hubei Elect Engn Corp, Wuhan, Peoples R China
[4] Changqing Oilfields Co, Xian, Peoples R China
关键词
Gas polyethylene pipe; long-term performance; Arrhenius theory; failure mode; PREDICTION;
D O I
10.1080/17445302.2023.2237298
中图分类号
U6 [水路运输]; P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
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.
引用
收藏
页码:1235 / 1239
页数:5
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