A materials toughness and impact strength can be determined by testing methods, such as Izod impact and Charpy methods. These testing methods are carried out using a Izod Charpy tester which measure the energy that can be absorbed by the material. There is a relation between the materials brittleness and energy absorption rate. Brittle materials generally have lower absorption rate in comparison to ductile material. Izod Charpy Tester is used to do Charpy impact testing on metals and Izod impact testing on plastic and metals.
In Automobile and Composite industries widely used. Izod/Charpy tester is used to determine Izod and Charpy impact strength absorb by composite material.