考虑罐壁表面状态的储液罐剩余寿命预测

IF 3.5 Q1 ENGINEERING, MULTIDISCIPLINARY

International Journal of Structural Integrity Pub Date : 2022-10-19 DOI:10.1108/ijsi-05-2022-0070

Jiafeng Lai, Yu-Hsing Wang, Yuwei Wei, Jinlu Liang, Xintian Liu

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引用次数: 0

摘要

目的预测储液罐的剩余寿命，以确保结构的安全和长期使用寿命。设计/方法/方法本文对储液罐的壁板和底板进行了应力分析，并考虑了周向应力对储罐的影响。另一方面，考虑到罐壁表面对罐寿命的影响，基于Paris定律，引入了表面处理系数和表面粗糙度系数，对Paris定律进行了改进。通过与理论和实验数据的比较，验证了改进模型的有效性，为储罐剩余使用寿命的预测提供了一种新的方法。结合试验报告中的疲劳裂纹数据和计算的周向应力，对储罐的剩余寿命进行了预测。新颖性/价值改进后的模型为储罐剩余使用寿命的预测提供了一种新的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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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来源期刊

International Journal of Structural Integrity ENGINEERING, MULTIDISCIPLINARY-

CiteScore

5.40

自引率

14.80%

发文量