Theoretical analysis and numerical simulation of axial tensile behavior of pipe joints based on bi-linear cohesive bond-slip model
ISSN: 0264-4401
Article publication date: 16 August 2023
Issue publication date: 12 October 2023
Abstract
Purpose
Due to its inexpensive production costs, low stress concentration and maintenance-friendliness, the adhesive bonded pipe joint is frequently utilized for pipe connection. However, further theoretical analysis is needed to understand the debonding failure mechanism of such bonded pipe joints under axial tension.
Design/methodology/approach
In this study, based on the bi-linear cohesive zone model, the integrated closed-form solutions were derived by considering the axial stiffness ratio and failure stage to determine the relative interfacial slip, interfacial shear stress and relationship of tension–displacement in the bonded pipe joint.
Findings
Additionally, solutions for the critical bonded length and the ultimate load capacity were put forth. Besides, the numerical study was conducted to verify the theoretical solutions regarding the load–displacement relationship. The interfacial shear stress distribution at different failure stages was presented to understand the interfacial shear stress transmission and debonding process. The effect of bonded length on the ultimate load and ductility of pipe joints was also discussed.
Originality/value
The findings in this study can give a reference for the design of bonded pipe joints in their actual engineering applications.
Keywords
Acknowledgements
The authors gratefully acknowledge the financial support provided by the Guangdong Basic and Applied Basic Research Foundation (No. 2023A1515010080), Science and Technology Program of Guangzhou (No. 202201010126) and the Young Science and Technology Talent Support Project of Guangzhou Association for Science and Technology (No. X20210201066).
This research was funded by the Guangdong Basic and Applied Basic Research Foundation (No 2023A1515010080), Science and Technology Program of Guangzhou (No 202201010126) and Young Science and Technology Talent Support Project of Guangzhou Association for Science and Technology (No X20210201066).
Citation
Yuan, H., Han, J., Lu, H., Li, J. and Zeng, L. (2023), "Theoretical analysis and numerical simulation of axial tensile behavior of pipe joints based on bi-linear cohesive bond-slip model", Engineering Computations, Vol. 40 No. 7/8, pp. 1633-1660. https://doi.org/10.1108/EC-10-2022-0636
Publisher
:Emerald Publishing Limited
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