Bend testing shear stud is a much informative qualitative procedure simple to perform.
When applied to welded specimens, it evaluates both the ductility and soundness of welds, without instrumented equipment.
Weld bend testing ensures the heat affected zone, as well as the weld itself, did not become brittle during the weld process. Testing may include face bend, root bend or side bend testing as specified. Usually two bend tests are performed on each face, root or side.
The specimens for bend testing are cut from a single weld plate submitted for testing. Test specimens may range in size from 6×6 inches to 8×24 inches, according to customer drawings or specifications.
The specimen is bent around a mandrel with a specific radius according to the applicable specification. The specimen is visually inspected for cracks, orange pealing or discontinuities in the bent surface. Each defect is noted on the report.