Pendulum impact tester.

Impact tests are used to measure the behavior of materials at higher deformation speeds. Pendulum impact testers determine the energy required to break a standardized specimen by measuring the height to which the pendulum hammer rises after impacting the test piece. Several test methods are currently applied, including Charpy impact tests, Izod impact tests and unnotched cantilever beam impact, tensile impact tests and Dynastat tests. The company's impact testers types 5102, 5113 and the HIT series are said to strictly adhere to ISO and ASTM standards. They are of the robust design necessary for reliable test results, according to the company. With instrumented impact testers, the pendulum fin is equipped with a sensor able to register the forces during the moment of impact. As a result, supplementary information about the tested material becomes available. Force/deflection diagrams are said to illustrate the brittleness more precisely. The range of use of each pendulum size is much larger, so fewer pendulum changes are needed to obtain reliable results in a broad range of tests, according to the company. (Zwick)

www.zwick.com