» Charpy Pendolum (0778)
Immagini
DESCRIPTION
Exhibit 778 is a special pendulum designed by Georges Charpy (1865-1945) to measure in laboratory the capacity of a material to resist breaking upon bending when struck. This measure, called "resilience" is the energy necessary to break a sample when struck by a single blow. The apparatus consists of a heavy steel base on which is mounted a metallic column which has a vice near the base for holding the sample. The pendulum proper is supported at the top of the column on a ball bearing axis. The angular positions of the pendulum can be read in degrees on a plastic protractor. On the end of the pendulum arm, there is a metallic hammer. After striking the sample, the final position of the pendulum is marked with a pointer.The energy expended in striking the sample is Mg(H-h) where M is the mass of the hammer, g is the acceleration due to gravity, H is the height for which the hammer started and h where is stopped after striking the sample.
Dati Catalografici
| Data di costruzione: | Ignota |
|---|---|
| Data di carico: | Ignota |
| Nr. Inventario: | Ignoto (Ignoto) |
| Costruttore: | Sconosciuta |
| Materiale: | ghisa |
| Dimensioni: | Base: 40 cm x 30 cm x 5cm; Altezza totale: 96 cm; Asta: 73,5 cm |
| Conservazione: | buono (Manca il morsetto per tenere il campione ) |