Please use this identifier to cite or link to this item:
Title: Multi-crack dynamic interaction effect on oil and gas pipeline weld joints based on VCCT
Authors: Cui, Wei
Xiao, Zhongmin
Yang, Jie
Tian, Mi
Zhang, Qiang
Feng, Ziming
Keywords: Engineering::Mechanical engineering
Issue Date: 2022
Source: Cui, W., Xiao, Z., Yang, J., Tian, M., Zhang, Q. & Feng, Z. (2022). Multi-crack dynamic interaction effect on oil and gas pipeline weld joints based on VCCT. Energies, 15(8), 2812-.
Journal: Energies
Abstract: In pipelines for transporting oil and gas, multiple cracks often exist in weld joints. The interaction among the cracks should be considered as it directly affects the life span of the pipeline structures. In the current investigation, based on the fluid–solid magnetic coupling model, the virtual crack-closure technique (VCCT) is applied to systematically study the multi-crack dynamic interaction effect on pipeline welds during the crack propagation process. The results show that the existence of an auxiliary crack accelerates the main crack’s propagation. When the auxiliary crack is nearer to the main crack tip, the enhancement effect of the auxiliary crack on the main crack increases. Further, when the initial length of the auxiliary crack increases, the main crack becomes easier to propagate. Two important parameters, the distance between the two interacting crack tips and the initial size of the auxiliary crack, are studied in detail. Their interference effect on the main crack has been quantified, which is very user-friendly for engineers to conduct failure assessment and prevention for oil and gas pipes with multiple cracks at weld joints.
ISSN: 1996-1073
DOI: 10.3390/en15082812
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// 4.0/).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

Files in This Item:
File Description SizeFormat 
energies-15-02812 (1).pdf12.14 MBAdobe PDFThumbnail

Citations 50

Updated on Nov 25, 2023

Web of ScienceTM
Citations 50

Updated on Oct 26, 2023

Page view(s)

Updated on Dec 1, 2023


Updated on Dec 1, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.