Drop Weight Testers for Pellini Tests
Download- Metals
- 1650 joules
- Drop weight test (Pellini)
- ASTM E208
- SEP 1325
W.S. Pellini Drop Weight Test
The drop weight test as described by W.S. Pellini (Pellini test) is used to investigate the brittle fracture tendency of steels for comparative evaluation of crack arrest behavior to ASTM E208 and SEP 1325.
During the 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 given total deflection. This brittle fracture is initiated by a notched welding bead laid on this side and known as the crack starter.
In this Pellini test it is 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 before. If the fracture extends to one of the two side faces, the specimen is considered broken.
Technical Overview
Model | P550 | P1650 | |
Item No. | 022317 | 024571 | |
Drop energy | 340 ... 550 | 340 ... 1650 | J |
Drop height max. | 1000 | 1300 | mm |
Drop weight | 24.8 ... 56 | 24.8 ... 130 | kg |
Total weight | 2534 | 2620 | kg |
Drop speed max. | 4.4 | 5 | m/s |
Dimensions | |||
A – height approx. | 3074 | 3374 | mm |
B – width approx. | 1550 | 1550 | mm |
C – depth approx. | 840 | 840 | mm |
Power rating | 2 | 2 | kW |
Compressed air | 8 | 8 | bar |
Specimens | |||
P1 | no | yes | |
P2 | yes | yes | |
P3 | yes | yes | |
P4 | yes | yes |
Length | Width | Thickness | ||
P1 | 360 ± 10 | 90 ± 2.0 | 25 ± 0.3 | mm |
P2 | 130 ± 10 | 50 ± 1.0 | 19 ± 0.2 | mm |
P3 | 130 ± 10 | 50 ± 1.0 | 16 ± 0.2 | mm |
P4 | 130 ± 10 | 50 ± 1.0 | 13 ± 0.2 | mm |
Length | Width | Thickness | ||
P1 | 356 | 89 | 25.4 | mm |
P2 | 127 | 51 | 19 | mm |
P3 | 127 | 51 | 15.9 | mm |