In this paper, strengthening of a steel pipe with a composite wrap is analyzed. An analytical model taking into account joint reaction of the pipe and the wrap, two-dimensional stress state and plastic strains in the pipe wall is developed. Verification of the model is performed by comparison of the numerical results to the full-scale test results for a strengthened pipe under the action of internal pressure. The developed model is applied to the analysis of a buried gas pipeline subjected to the internal pressure and temperature loading. The results obtained with the analytical model are compared to the results of a finite-element simulation. A good agreement is established. The effect of wrap thickness on the stress–strain state and load-carrying capacity of the strengthened pipe is studied.
Analysis of Stress–Strain State in a Steel Pipe Strengthened With a Composite Wrap
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received December 16, 2013; final manuscript received March 18, 2014; published online August 19, 2014. Assoc. Editor: Pierre Mertiny.
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Trifonov, O. V., and Cherniy, V. P. (August 19, 2014). "Analysis of Stress–Strain State in a Steel Pipe Strengthened With a Composite Wrap." ASME. J. Pressure Vessel Technol. October 2014; 136(5): 051202. https://doi.org/10.1115/1.4027229
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