The Strength Research of Pressure Pipeline Reinforced with CFRP

Juan Han; Yin Liang

doi:10.4028/www.scientific.net/AMM.446-447.1405

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 446-447The Strength Research of Pressure Pipeline...

The Strength Research of Pressure Pipeline Reinforced with CFRP

Abstract:

In order to make the pressure safe, a new method and material for reinforcing pipelines is introduced, that is carbon fiber reinforced polymer sheet. In the experiment, the metal pipelines that wrapped with different layers of CFRP sheets respectively are carried loads by hydrostatic burst test. The results show that this method can be a substantial reinforcement in the bearing capacity of the metal pipelines. According to the test data and the thin wall cylinder stress calculation theory, the design formula of reinforcing layer thickness of CFRP was presented in the elastic and plastic state of metal material. Based on the plastic solution of thick wall cylinder in the polar coordinates, the strength checking formulas of repair system was presented in different mechanical states. The presented formulas without iterative calculation have practical value in the production practice.

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Periodical:

Applied Mechanics and Materials (Volumes 446-447)

Pages:

1405-1408

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.446-447.1405

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Online since:

November 2013

Authors:

Juan Han, Yin Liang

Keywords:

CFRP, Pressure Pipeline, Reinforcement, Strength Research

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