This paper presents the analysis of repair of pipelines using nanofiller dispersed composites. Steel pipe with part wall loss as per ISO 24817 is repaired using glass/epoxy composites with and without nanoclay reinforcement and burst test is performed in order to assess the performance and effectiveness of nanocomposites-based repair system. A simple methodology is developed to find out the failure pressure of pipelines and is compared with the experimental and ISO 24817 repair code results. The thickness of the composite wrap is predicted analytically for 1–5% nanofiller dispersion in the epoxy for 30–80% of pipe wall loss and live pressure of pipe. The results are analyzed to find effectiveness of clay dispersion and effect of live pressure for 30–80% of pipe wall loss. It is observed that the dispersion of nanofiller improves the bursting resistance of composite wrapping over outer surface of pipe.
Issue Section:
Materials and Fabrication
Keywords:
Fabrication,
Fatigue,
High pressure engineering,
Life extension,
Safety,
Fracture prediction,
Reliability
Topics:
Composite materials,
Failure,
Maintenance,
Pipes,
Pressure,
Steel,
Pipelines,
Epoxy resins,
Nanoclays,
Glass
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