Fraunhofer Institute for Microstructure of Materials and Systems IMWSIn the notch impact test, a type of impact test according to ISO 148-1, a notched metal sample is struck with a pendulum hammer. The impact energy is determined from the difference between the potential energy of the pendulum hammer and the rise height of the pendulum hammer after the sample breaks.
This method provides information about how resistant a material is to sudden impact and is used at Fraunhofer IMWS for materials and component testing.