The use of composite systems as a repair methodology in the pipeline industry has grown in recent years. In this study, the analysis of the behavior of circumferential through cracks in repaired pipe with bonded composite wrap subjected to internal pressure is performed using three-dimensional finite element analysis. The fracture criterion used in the analysis is the stress intensity factor (SIF). The obtained results show that the bonded composite repair reduces significantly the stress intensity factor at the tip of repaired cracks in the steel pipe, which can improve the residual lifespan of the pipe.
Stress Intensity Factor for Repaired Circumferential Cracks in Pipe With Bonded Composite Wrap
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received May 25, 2013; final manuscript received September 24, 2013; published online April 3, 2014. Assoc. Editor: David L. Rudland.
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Benyahia, F., Albedah, A., and Bachir Bouiadjra, B. (April 3, 2014). "Stress Intensity Factor for Repaired Circumferential Cracks in Pipe With Bonded Composite Wrap." ASME. J. Pressure Vessel Technol. August 2014; 136(4): 041201. https://doi.org/10.1115/1.4026022
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