impact testing machine

Notch test or V-notch test is a popular name used for the Charpy Impact Test. It is a highly standardized test which helps to measure the amount of energy which is absorbed by the notched sample when extreme pressure is applied to it. This energy is considered as a pathway to study the ductile-brittle nature of the sample. The Charpy impact test is applied in the industries as it is easy to conduct and offer the accurate and quick results regarding the ductility and strength of the materials, but the results of the test are sometimes cannot be compared with other results.

To perform the test, first of all, a notch is created in the sample as mentioned in the standards to perform the impact test. There are many parameters that can affect the test results hence it is necessary to ensure that all the parameters are perfectly set before commencing the test. Firstly, it is essential to confirm that the notch which has been made on the sample is perfect in terms of geometrical angle and dimension. Hence, a highly standardized notch cutter is used to create a notch on the sample.  Secondly, it is a must to confirm the size of the sample because the size of the sample can also affect the test results as the perfect dimension of the sample determines whether the material is placed in plane strain or not.