- Izod Impact Test
(a) Use the table below with absorbed energy (Joules) results obtained for three materials tested. Calculate the average toughness and standard deviation for each material
| Izod Impact Test | Steel | Brass | Aluminum |
| 1 | 2.56 | 1.87 | 0.97 |
| 2 | 2.62 | 1.72 | 0.79 |
| 3 | 2.68 | 1.67 | 0.80 |
| Average absorbed energy | |||
| Standard deviation |
(b) Sample calculation for any one metal
(c) Briefly compare the toughness of the materials (hint: toughness is directly related to the absorbed energy)
- Charpy Impact Test: Briefly discuss using the fracture surface image and the absorbed energy the difference in the impact resistance of the steel sample tested at room temperature and -59oC.
