Composite materials are widely recognized as a resource for repairing damaged pipelines. The fibers in conventional composite repair systems typically incorporate E-glass and carbon materials. To provide greater levels of reinforcement a system was developed that incorporates steel half shells and an E-glass composite repair system. In comparison with other competing composite technologies, the hybrid system has a significant capacity to reduce strain in corroded pipeline to a level that has not been seen previously. Specifically, the hybrid system was used to reinforce a pipe sample having 75% corrosion subjected to cyclic pressure at 36% SMYS. This sample cycled 767,816 times before a leak failure developed. Furthermore, recent testing has demonstrated that the hybrid system actually places the pipeline in compression during installation. This paper will provide results on a series of specifically-designed tests to evaluate the performance of the hybrid system and the implications in relation to the service of actual pipelines.
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2012 9th International Pipeline Conference
September 24–28, 2012
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute
- Pipeline Division
ISBN:
978-0-7918-4513-4
PROCEEDINGS PAPER
Development and Evaluation of a Steel-Composite Hybrid Composite Repair System
Chris Alexander,
Chris Alexander
Stress Engineering Services, Inc., Houston, TX
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Carl Brooks
Carl Brooks
Western Specialties, Avon, NY
Search for other works by this author on:
Chris Alexander
Stress Engineering Services, Inc., Houston, TX
Carl Brooks
Western Specialties, Avon, NY
Paper No:
IPC2012-90573, pp. 755-769; 15 pages
Published Online:
July 25, 2013
Citation
Alexander, C, & Brooks, C. "Development and Evaluation of a Steel-Composite Hybrid Composite Repair System." Proceedings of the 2012 9th International Pipeline Conference. Volume 2: Pipeline Integrity Management. Calgary, Alberta, Canada. September 24–28, 2012. pp. 755-769. ASME. https://doi.org/10.1115/IPC2012-90573
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