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Effect of surface crack dimension on very low cycle fatigue crack growth behavior of circumferential cracked pipes
Abstract In this study, the effects of surface crack depth and length on the fracture behavior of circumferentially cracked pipes under very low cyclic loading were investigated via finite element (FE) damage analysis using an energy-based damage model. The FE analysis method was first validated by comparison with the SA508 Gr.1a surface-cracked pipe test results. Using FE damage analysis, a parametric study was conducted for a surface-cracked pipe with cracks of different depths and lengths, giving the same limit load. The variations in crack penetration and unstable fracture cycles depending on crack depth and length are discussed.
Graphical abstract Display Omitted
Highlights Effect of the surface crack depth and length on very low cyclic fatigue crack growth of circumferential cracked pipes is investigated. Finite element (FE) damage analysis is used to simulate crack growth. SA508 Gr. 1a surface cracked pipe test data are used to validate FE analysis. A parametric study shows that the initial crack depth is the most important for crack penetration.
Effect of surface crack dimension on very low cycle fatigue crack growth behavior of circumferential cracked pipes
Abstract In this study, the effects of surface crack depth and length on the fracture behavior of circumferentially cracked pipes under very low cyclic loading were investigated via finite element (FE) damage analysis using an energy-based damage model. The FE analysis method was first validated by comparison with the SA508 Gr.1a surface-cracked pipe test results. Using FE damage analysis, a parametric study was conducted for a surface-cracked pipe with cracks of different depths and lengths, giving the same limit load. The variations in crack penetration and unstable fracture cycles depending on crack depth and length are discussed.
Graphical abstract Display Omitted
Highlights Effect of the surface crack depth and length on very low cyclic fatigue crack growth of circumferential cracked pipes is investigated. Finite element (FE) damage analysis is used to simulate crack growth. SA508 Gr. 1a surface cracked pipe test data are used to validate FE analysis. A parametric study shows that the initial crack depth is the most important for crack penetration.
Effect of surface crack dimension on very low cycle fatigue crack growth behavior of circumferential cracked pipes
Song, Hyun-Seok (author) / Hwang, Jin-Ha (author) / Kim, Yun-Jae (author) / Kim, Jin-Weon (author)
Thin-Walled Structures ; 191
2023-07-17
Article (Journal)
Electronic Resource
English
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