Instrumented impact testing directly provides the maximum force, yield point and energy absorbed before brittle fracture, among other data. Besides, it can be used to estimate the percent of shear fracture and fracture toughness. Another advantage, is the ability to classify specimens into standard categories, from the shape of the measured curve.
Thanks to this, it is possible to observe material characteristics that can often be overlooked or wrongfully settled during traditional testing. For example, transition temperature determination is much more evident and precise than through the method of visual estimation of the broken specimen surface.
IBERTEST Charpy Tester – Instrumented Test Method