Numerical Method for Fatigue Life Prediction of Liquid‐Storage Tank via Crack Length and Depth

Lai, Jiafeng; You, Ziyun; Luo, Jiao; Wei, Yuwei; Liu, Xintian

doi:10.1155/2020/2427196

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…This kind of internal pressure storage tank is regarded as a thin-walled cylinder by some scholars. 39 The axial stress is σ = pR 2 t . The circumferential stress is σ = pR t .…”

Section: Tank Wall Stress Calculation Of Liquid Storage Tankmentioning

confidence: 99%

Fatigue life prediction of gasoline storage tank considering varying current density and weld stress

Yang

Liu

Lai

et al. 2022

Advances in Mechanical Engineering

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In the field of corrosion fatigue crack research, how to couple corrosion and fatigue under various conditions is a problem worthy of discussion. According to the electrochemical corrosion principles and the superposition principles, studies have been made on the interaction between corrosion and fatigue, and the relationship model between the corrosion fatigue crack size and the corrosion fatigue remaining life in the Corrosion of Hydrogen evolution (COHE) fatigue long crack growth stage is established. The feasibility of the model is verified by using the experimental data. According to the specific structure of the dislocation butt weld of large storage tank, the stress at the crack is calculated. Based on the above model and the experimental data, the corrosion fatigue residual life of large storage tank is predicted. The feasibility of the model is verified, which provides a new method for corrosion fatigue life prediction of large storage tanks.

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“…This kind of internal pressure storage tank is regarded as a thin-walled cylinder by some scholars. 39 The axial stress is σ = pR 2 t . The circumferential stress is σ = pR t .…”

Section: Tank Wall Stress Calculation Of Liquid Storage Tankmentioning

confidence: 99%

Fatigue life prediction of gasoline storage tank considering varying current density and weld stress

Yang

Liu

Lai

et al. 2022

Advances in Mechanical Engineering

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“…f is a function of the geometry of the general member and the crack size, and Δσ is the stress amplitude at the crack. The expression of the function f can be given as follows (Lai et al, 2020):…”

Section: Improved Paris Lawmentioning

confidence: 99%

The prediction of residual life of liquid-storage tank considering the tank wall surface state

Lai

Wang

Wei

et al. 2022

IJSI

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PurposeThe 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/approachThe 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.FindingsThe 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/valueThe improved model provides a new method for the prediction of the remaining service life of the tank.

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Corrosion fatigue life prediction of crude oil storage tank via improved equivalent initial flaw size

Zhang

Liu

Lai

et al. 2021

Theoretical and Applied Fracture Mechanics

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Numerical Method for Fatigue Life Prediction of Liquid‐Storage Tank via Crack Length and Depth

Cited by 4 publications

References 25 publications

Fatigue life prediction of gasoline storage tank considering varying current density and weld stress

Fatigue life prediction of gasoline storage tank considering varying current density and weld stress

The prediction of residual life of liquid-storage tank considering the tank wall surface state

Corrosion fatigue life prediction of crude oil storage tank via improved equivalent initial flaw size

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