ORCID Profile
0000-0002-9214-5420
Current Organisation
Tianjin University
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Publisher: Elsevier BV
Date: 12-2021
Publisher: MDPI AG
Date: 26-04-2022
DOI: 10.3390/JMSE10050589
Abstract: The objective of this study was to investigate the performance of pipelines repaired with carbon-fibre-reinforced polymer (CFRP) under external pressure. The repaired pipeline experienced defects in terms of thinning of its local inner wall. The three-dimensional finite element method was used to analyse the collapse pressure of repaired pipes with internal corrosion defects. The traction–separation law and interlaminar damage criterion were applied to simulate the collapse process of repaired pipes. The results show that the collapse pressure of the composite-repaired pipe increased and the CFRP significantly reduced the strain in the defect region. It was observed that the ovality of the corrosion defect region was reduced and that the repair effectiveness mainly depended on the length, thickness, and interlayer cohesion.
Publisher: MDPI AG
Date: 09-08-2021
DOI: 10.3390/EN14164866
Abstract: In this paper, the effects of different loading paths of axial tension and external pressure on the collapse pressure of sandwich tubes are studied by experiments and finite element models. The difference of the two loading paths is investigated. Eight experiments were carried out to study the influence of different loading paths on pipeline collapse pressure under the same geometric and material parameters. Parameterization studies have been carried out, and the results are in good agreement with the experimental results. The test and finite element results show that the loading path of external pressure first and then the axial tension (P→T) is more dangerous the collapse pressure of the sandwich pipe is smaller than the other. Through parametric analysis, the influence of the axial tension and the diameter-to-thickness ratio of the inner and outer pipe on the collapse pressure under different loading paths are studied.
Publisher: Elsevier BV
Date: 2022
Publisher: Elsevier BV
Date: 11-2022
Start Date: 2000
End Date: 2002
Funder: National Natural Science Foundation of China
View Funded ActivityStart Date: 2014
End Date: 2017
Funder: National Natural Science Foundation of China
View Funded ActivityStart Date: 2012
End Date: 2015
Funder: National Natural Science Foundation of China
View Funded ActivityStart Date: 2013
End Date: 2017
Funder: National Natural Science Foundation of China
View Funded ActivityStart Date: 2006
End Date: 2008
Funder: National Natural Science Foundation of China
View Funded ActivityStart Date: 2019
End Date: 2022
Funder: National Natural Science Foundation of China
View Funded Activity