Charpy impact test

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Named for French scientist Georges Charpy (1865–1945).


Charpy impact test (plural Charpy impact tests)

  1. A test of the impact strength of a material, used to determine its relative ductility or brittleness. The test is executed by swinging a large, heavy hammer on a pendulum from a predetermined height. The hammer fractures the material sample, usually a block of a certain size with a notch cut in it. The height to which the pendulum swings is used to calculate the energy necessary to fracture the sample.