Dynamic material characterization using 4a impetus

The demand for shorter product development times and the consequence of increased usage of simulation programs has lead to a rise of the importance of gaining quickly material data. For this the testing device 4a impetus was developed by 4a engineering GmbH. The system allows performing many test methods (bending, clamped bending, pressure tests, puncture tests, component tests), managing of the tests and simulations by a database, and is linked to optimization algorithms to identify the material parameters by reverse engineering. The material data is evaluated from bending tests which are near to reality load cases, high strain rates can be achieved and the test specimens can be taken directly from parts. Generating more complex material cards (general yield surface, failure) is possible by regarding additional tests (e.g. clamped bending, puncture test). So 4a impetus is a system to gain very easy, quick and cost efficient validated material cards.