Impact Tests

Impact Tests

The following testing methods are commonly applied to metals:


* Charpy (EN 10045, ASTM E23, DIN 50115, and ISO 14556 for instrumented tests)

* Izod (ASTM E 23, BS 131 - Part 1)

* Impact tensile test

* Tests to Brugger


Pendulum impact testers with a work capacity of up to 750 J are available for these different tests, sample types and cross sections.

The Charpy test has a very broad range of applications and can be performed for tests to EN or ASTM with the same basic machine and same hammer after a simple and quick fin exchange.

The Zwick pendulum impact tester PSW 750 is designed for tests to Charpy in the range to 750 Joules. The testing machine RKP 450 is a universal pendulum impact tester up to 450 J for Charpy, Izod, impact tensile and Brugger tests. Both machines can be modified to support semi- or fully automatic specimen temperature control (for both positive and negative testing temperatures) as well as feeding.


Instrumented Impact Tests

In instrumented pendulum impact testers, the hammer fin is equipped with a force sensor. This allows the force progression to be measured during the impact process.

In addition to the impact energy, additional information on the material behavior can be gained. Force-travel diagrams, for example, are a reliable indicator of whether a specimen has suffered a ductile or brittle break.


Pendulum Impact Tester RKP 450