Structural integrity assessment of pipe elbows: Burst test and finite element analysis
Vijaya Kumar, Suria Devi and Karuppanan, Saravanan and Perumal, Veeradasan and Ovinis, Mark (2024) Structural integrity assessment of pipe elbows: Burst test and finite element analysis. International Journal of Pressure Vessels and Piping, 212. p. 105339. ISSN 0308-0161
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IPVP-D-24-00532_R1.pdf - Accepted Version Restricted to Repository staff only until 30 October 2026. Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (1MB) | Request a copy |
Abstract
In this study, the failure pressures of pipe elbows were compared with those predicted using Level 3 numerical assessment method (Finite Element Method). Four 90-degree pipes elbows representing a pristine pipe, a pipe with a single corrosion defect, a pipe with longitudinally aligned interacting defects, and a pipe with a circumferentially aligned interacting defects, were subjected to internal pressure based on the ASME B31.3–2012 Burst Test standard until failure. The Sch-80 pipes were made of ASTM A234 WPB steel with a wall thickness and bending radius of 12.7 mm and 305 mm respectively. The corrosion defects were simulated on the exterior surface of the pipe elbows using computer numerical control (CNC) machine to generate a machined version of the corrosion defect. The results revealed that corrosion defects significantly reduce the burst pressure of pipe elbows, with longitudinally aligned interacting defects causing the largest reduction of 20.9 % compared to pristine pipe. The comparison between the Level 3 numerical assessment method and burst test showed close agreement with a maximum difference of 4.79 %, confirming the accuracy and reliability of the numerical method.
| Item Type: | Article |
|---|---|
| Identification Number: | 10.1016/j.ijpvp.2024.105339 |
| Dates: | Date Event 10 October 2024 Accepted 24 October 2024 Published Online |
| Uncontrolled Keywords: | Burst testing, Pipe elbows, Structural integrity assessment, Finite element method |
| Subjects: | CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-02 - mechanical engineering |
| Divisions: | Architecture, Built Environment, Computing and Engineering > Engineering |
| Depositing User: | Gemma Tonks |
| Date Deposited: | 30 Jul 2025 13:14 |
| Last Modified: | 30 Jul 2025 13:14 |
| URI: | https://www.open-access.bcu.ac.uk/id/eprint/16548 |
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