Effect of Technological Tensioning on the Efficiency of Reinforcement of Pipelines with Composite Bands
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A mathematical model for the contact interaction of a cylindrical pipe with a composite band during its repair is constructed. A system of governing equations of the contact problem is formulated by using the Timoshenko theory of shells. An analysis of possible solutions is carried out for various combinations of geometric and elastic properties of shells. The possibility of pretension of a prepreg in order to improve the efficiency of repair is considered. The numerical results obtained allow one to establish the desired level of pretension for various repair situations.
Keywordspipelines nondestructive repair composite band contact problem
This study was financially supported by the 7th EU Frame Program, Maria Curie Initiative, Project “INNOPIPES”, PIRSES-GA-2012-318874, (Innovative methods of nondestructive control and composite repair of pipelines with defects of their surface with the use of composites).
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