Izod impact test
A pendulum-type Test to determine the energy absorbed in fracturing a notched test bar at high velocity. See also Charpy Test, Izod Test. in which the specimen is supported at one end as a cantilever beam and the energy required to break off the free end by the impact of a falling pendulum is used as a measure of impact strength. See An impact test in which a specially V-notched specimen is broken by the impact of a falling pendulum. The energy absorbed in fracture is a measure of the impact strength or notch toughness of the sample..