Buy article PDF
Instant access to
the full article PDF
for the next 48 hrs
US$ 35
|
Structural Engineering and Mechanics Volume 59, Number 5, September10 2016 , pages 795-802 DOI: https://doi.org/10.12989/sem.2016.59.5.795 |
|
|
|
Impact of geometric pattern corrosion on limit failure pressure of buried gas pipelines |
||
Nemat Hassani, S. Mohammad S. Kolbadi, Mahmud Reza Shiravand and Jafar H. Golafshani
|
||
| Abstract | ||
| Gas pipelines are types of structures that are highly susceptible to corrosion. Sometimes, the pipes are subjected to a thinning of the wall thickness at the inside or outside wall due to erosion/corrosion. Therefore, it is important to evaluate the strength of the pipes undergoing corrosion to maintain the integrity of the piping systems. The main purpose of this study is to understand failure aspects caused by degradation of metal due to corrosion through. The ASME standard offers a relationship for the yielding pressure of the corroded pipes which was compared with the finite element results. The results demonstrate to obtain accurate results, the ASME relationship is unreliable. Moreover, pitting corrosion must be considered critical more than of other types. | ||
| Key Words | ||
| gas pipeline; limit failure pressure; geometric pattern corrosion; ASME code | ||
| Address | ||
| Nemat Hassani, S. Mohammad S. Kolbadi, Mahmud Reza Shiravand and Jafar H. Golafshani: Department of Civil Engineering, Shahid Beheshti University, Tehran, Iran | ||