Three Types of Full-scale Testing
The project includes different types of full-scale testing using C-FER’s unique global research laboratory, such as:
Non-destructive Tensile Testing
Different repair technologies were applied on a large diameter pipe and placed under pressure, like it would be in the field. They were then subjected to large axial tensions tests.
Many variables were monitored. The stiffness and effectiveness of load sharing between the pipe and repair collar was a key performance metric during these first tests.
Short-term Destructive Tensile Testing
This involves subjecting various non-welding technologies to a series of destructive tests with consistent flaw sizes. Specimens are subjected to destructive testing under constant pressure and displacement-controlled axial tension until they fail.
Upon completion of these tests, the repaired specimens will be evaluated against the results of the defect-free specimens.
Long-term Destructive Testing
Adhesive and composite materials also have the potential to deteriorate over time. One of the purposes of the long-term testing is to address concerns with things like creep deformation in the repair.
During this type of testing, some non-welding repair technologies will be selected for long-term destructive testing using a custom apparatus.
The test will focus on things like the load capacity, overload capacity, maximum burst pressure, and failure mode of the technologies.