The prediction of residual life of liquid-storage tank considering the tank wall surface state
International Journal of Structural Integrity
ISSN: 1757-9864
Article publication date: 19 October 2022
Issue publication date: 16 November 2022
Abstract
Purpose
The purpose of the paper is to predict the residual life of liquid-storage tank to ensure safety and long-term service life of the structure.
Design/methodology/approach
The paper carried out the stress analysis of the wall plate and bottom plate of the liquid-storage tank, and the influence of circumferential stress on the tank is considered. On the other hand, considering the influence of the tank wall surface on the tank life, based on the Paris law, the surface processing coefficient and surface roughness coefficient are introduced to improve the Paris law.
Findings
The effectiveness of the improved model is verified by comparing with theoretical and experimental data, which provide a new method for the prediction of the remaining service life of the tank. Combined with the fatigue crack data in the test report and the calculated circumferential stress, the residual life of the storage tank is predicted.
Originality/value
The improved model provides a new method for the prediction of the remaining service life of the tank.
Keywords
Acknowledgements
The authors are grateful to all study participants.
This work is supported by the Key R&D Plan of Guangxi Science and Technology Planed Projects (GKAB18294005), the Basic Ability Enhancement Program for Young and Middle-aged Teachers of Guangxi (2018KY0603), the Beibu Gulf University High-level Talent Foundation (2018KYQD26) and the Natural Science Foundation of Guangxi Province (Grant number: 2022GXNSFBA035547).
Citation
Lai, J., Wang, Y., Wei, Y., Liang, J. and Liu, X. (2022), "The prediction of residual life of liquid-storage tank considering the tank wall surface state", International Journal of Structural Integrity, Vol. 13 No. 6, pp. 985-998. https://doi.org/10.1108/IJSI-05-2022-0070
Publisher
:Emerald Publishing Limited
Copyright © 2022, Emerald Publishing Limited