Izodiskukokeet

Izodiskukokeet, also known as Izod impact tests, are a standardized method used to measure the toughness of materials, particularly plastics and metals. The test involves notching a specimen and then applying a pendulum impact to the notch, causing the specimen to break. The energy absorbed by the specimen during the fracture is recorded and used to calculate the impact strength or toughness of the material. This test is crucial in quality control and material selection processes, as it provides valuable information about a material's resistance to sudden, high-stress impacts. The Izod impact test is defined by ASTM D256 for plastics and ASTM E23 for metals, ensuring consistency and comparability of results across different testing laboratories. The test is named after Edward William Izod, an English engineer who developed the method in the early 20th century.