Impact strength

From GAWDAwiki

The impact strength of a material is a measure of its ability to withstand shock loads. In the laboratory, it is evaluated by dynamic test methods, such as the Charpy V Notch, and, less commonly nowadays, the Izod test. These tests measure the energy absorbed in breaking a pre-notched specimen held at a known test temperature. This absorbed energy is quoted in "Joules" or "Foot-pounds," and reference is always made to the temperature at which the test was carried out.^[1]

References

1. http://www.bocindustrial.co.uk/bocindustrial/technical/glossary/a.asp