W.S. Pellini Drop Weight Test
During the W.S. Pellini test, weights fall onto a rectangular flexure specimen supported at both ends, causing a brittle fracture on the tensile side of the specimen within a prescribed total deflection. This brittle fracture is initiated by a notched welding bead laid on this side and known as the crack starter.
It is then determined whether the brittle fracture caused by the artificial crack-starter spreads as far as one of the two side faces of the specimen or is arrested beforehand. If the fracture extends to one of the two side-faces, the specimen is regarded as broken.
- Pellini drop weight testers are available in 550J and 1650J versions.
- The maximum fall height is 1 meter or 1.3 meters.
- In accordance with standards (ASTM E208 and SEP 1325), the prescribed drop-energies are obtained by the simple use of weights. Drop energy is calculated automatically.