Charpy impact test
Method of measuring the amount of energy absorbed by a material during fracture
Charpy impact test
In materials science, the Charpy impact test, also known as the Charpy V-notch test, is a standardized high strain rate test which determines the amount of energy absorbed by a material during fracture. Absorbed energy is a measure of the material's notch toughness. It is widely used in industry because it is easy to prepare and conduct, and results can be obtained quickly and cheaply. A disadvantage is that some results are only comparative. The test was developed around 1900 by the American engineer S. B. Russell and the French engineer Georges Charpy, who proposed his standardized version in 1901. It became known as the Charpy test in the early 1900s because of his technical contributions and standardization efforts. It came into widespread use for certification of materials after the 1950s.
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