What is the charpy impact test?

The Charpy impact test is a standardized method used to measure the toughness of materials, particularly metals, by determining their ability to absorb energy during fracture. In this test, a notched specimen is struck by a swinging pendulum, and the energy absorbed in breaking the specimen is measured. The results help assess the material's ductility and brittleness, especially at various temperatures. It is widely used in materials science and engineering to evaluate the performance of materials in real-world applications.