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A platform for research: civil engineering, architecture and urbanism
Numerical study of annular flaws/defects affecting the integrity of grouted composite sleeve repairs on pipelines
Grouted sleeves are one of the accepted techniques used for the repair of corroded pipelines. The sleeves are attached over the region of pipe that requires repair, creating an annulus that is then filled with grout material. In this study, the repair system consists of a composite sleeve with polymeric grout. A finite element (FE) study is carried out to predict the effects of selected properties of the composite sleeve and grout on the pipe integrity, subjected to internal fluid pressure. The primary purpose is to identify the main effects and interactions between different material properties, which are useful to aid design decisions for such repairs. While structural reinforcement is provided by the sleeve, the grout plays an important role in transferring hoop pressure in the pipe to the sleeve. Since experimental observations indicate the development of cracks in the grout solely under curing conditions, it is imperative to investigate the effects of such defects. Several different repair conditions that have potential to critically influence the integrity of a repaired pipe are investigated.
Numerical study of annular flaws/defects affecting the integrity of grouted composite sleeve repairs on pipelines
Grouted sleeves are one of the accepted techniques used for the repair of corroded pipelines. The sleeves are attached over the region of pipe that requires repair, creating an annulus that is then filled with grout material. In this study, the repair system consists of a composite sleeve with polymeric grout. A finite element (FE) study is carried out to predict the effects of selected properties of the composite sleeve and grout on the pipe integrity, subjected to internal fluid pressure. The primary purpose is to identify the main effects and interactions between different material properties, which are useful to aid design decisions for such repairs. While structural reinforcement is provided by the sleeve, the grout plays an important role in transferring hoop pressure in the pipe to the sleeve. Since experimental observations indicate the development of cracks in the grout solely under curing conditions, it is imperative to investigate the effects of such defects. Several different repair conditions that have potential to critically influence the integrity of a repaired pipe are investigated.
Numerical study of annular flaws/defects affecting the integrity of grouted composite sleeve repairs on pipelines
Sum, W.S. (author) / Leong, K.H. (author) / Gibson, A.G. (author) / Echtermeyer, A.T. (author)
Journal of Reinforced Plastics and Composites ; 33 ; 556-565
2014
10 Seiten, 10 Quellen
Article (Journal)
English
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