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• W1995251695 abstract "Metal materials can inevitably show deteriorated properties by the factors of stress, temperature, and environmental erosion in distinct operating environments. Without proper protection, the service life would be shortened or even deadly danger would be caused. This study aims to apply Finite Element Method and Boundary Element Method to analyzing the effects of corroded petrochemical pipes on the fatigue life and the fracture form. The research results of nondestructive testing and software analyses show that cracked oil pipes with uniform corrosion bear larger stress, mainly internal pressure, on the longitudinal direction than the circumferential direction. As a result, the maximal fatigue loading cycle of a circumferential crack is higher than that of a longitudinal one. From the growing length and depth of a crack, the final aspect ratio of crack growth appears in 2.42–3.37 and 2.71–3.42 on the circumferential and longitudinal direction, respectively. Meanwhile, the ratios of loading cycles of circumferential and longitudinal crack are 26.23 on uncorroded and 20.54 on general metal loss oil pipe. The complete crack growth and the correspondent fatigue loading cycle could be acquired to determine the service life of the oil pipe being operated as well as the successive recovery time." @default.
• W1995251695 created "2016-06-24" @default.
• W1995251695 creator A5021875041 @default.
• W1995251695 date "2015-01-01" @default.
• W1995251695 modified "2023-09-26" @default.
• W1995251695 title "Fracture Characteristics Analysis of Pressured Pipeline with Crack Using Boundary Element Method" @default.
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• W1995251695 doi "https://doi.org/10.1155/2015/508630" @default.
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