Composite Repairs to Complex Shapes

The work proposed below will be undertaken in three stages;

Stage 1

Development of a composite repair design methodology document
An analytical/numerical study to identify an optimum fitting size for testing in Stage 2 and Stage 3
Testing for possible debonding due to pressure reduction/depressurisation
Long term (fatigue) testing of bends

Stage 2

Stage 3

The success criteria for the work proposed will be;

Verification and implementation of new technology enabling repairs of part through-wall, blunt, metal loss defects associated with complex shaped geometries at a reduced cost and reduced downtime compared with conventional techniques/methods.
A consistent approach to the repair of part through-wall, blunt, metal loss defects for the UK gas transmission and distribution system.
Verification of the ISO recommendations and industry practice guidance for the design and installation of composite systems, and development of a comprehensive guidance document governing the design and installation of composite systems.

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