Cover
Vol. 25 No. 2 (2025)

Published: December 31, 2025

Pages: 83-90

Original Article

Numerical Failure Pressure Predication of Corrosion Defect in Transmission Pipeline

Nathera A. Saleh 1 Asaad K. Kadhim 1 Ayat I. Ali 1 Abdulrahman A. Adnan 1
1 Mechanical Engineering Department, College of Engineering, University of Basrah, Basrah, Iraq
History
  • Received: July 30, 2025
  • Revised: August 31, 2025
  • Accepted: September 22, 2025
  • Available Online: December 31, 2025
DOI

https://doi.org/10.33971/bjes.25.2.9

Abstract

This study focuses on evaluating the structural integrity of SA-312 Grade TP316 pipeline with various forms of corrosion defects. The corrosion defects were characterized by three distinct geometries: internal rectangular, external rectangular, and internal elliptical. The effect of defect length, width and depth on pipeline failure pressure is investigated using the finite element method ANSYS software version 21. Regression analysis is conducted to develop equations relating maximum pressure to defect dimensions. The results show good agreement between the finite element results, experimental data, theoretical predictions, and design codes, with an error rate ranging from 3.98% to 17.79%. Failure pressure was found to be highly sensitive to corrosion dimensions, but the depth of corrosion has a greater impact on the failure pressure. Furthermore, it was observed that internal corrosion poses a greater threat to pipeline integrity than external corrosion.

Keywords

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