التفاصيل البيبلوغرافية
| العنوان: |
Cyclic Loading on Composite Repair of Corroded Steel Pipelines. |
| المؤلفون: |
K., Vishwas Chandra, P., Nitheesh Kumar, Balaganesan, G., K., Jayakumar, Mahajan, Puneet |
| المصدر: |
Defence Science Journal; May2024, Vol. 74 Issue 3, p373-380, 8p |
| مصطلحات موضوعية: |
CYCLIC loads, DEAD loads (Mechanics), STATIC pressure, STEEL, INTEGRITY, DEBONDING |
| مستخلص: |
The study aims to determine how cyclic loading affects the structural integrity and lifespan of composite repair systems used to restore corroded steel pipelines. As specified in Annexure C of the ISO 24817 repair code, pipe specimens are machined to produce flaws with 80 % wall loss. Testing under static and cyclic pressure loading is done as per ASTM D2992 and ASTM D2143. Static pressure loading is accomplished by continually pressurizing the pipe specimen, and burst pressure is assessed. Various Rc-ratios or levels of cyclic loading severity are used in cyclic pressure loading tests. Each case’s number of cycles before failure is determined experimentally, and the service de-rating factor is assessed in accordance with ISO 24817. The 235 bar pressure was sustained by the static-loaded repaired pipe specimens with 80 % wall loss, and the failure was catastrophic. At around 7000 cycles, the cyclically loaded repaired samples with 80 % wall loss failed, and the failure manifests as debonding or a leak. [ABSTRACT FROM AUTHOR] |
|
Copyright of Defence Science Journal is the property of Director, DESIDOC, DRDO, Publisher of DESIDOC Bulletin of Information Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Supplemental Index |
Full Text Finder