The knowledge of the dynamic behaviour of materials is of essential interest if dynamic processes like forming or cutting processes are investigated. Thereby, dynamic strength properties as well as failure behaviour as a function of strain, strain rates, temperature and loading state are of special interest.
If experimental work on impact material behaviour is described in literature mostly Hopkinson bar testing is mentioned. However, a variety of different experimental techniques exist to determine the dynamic behaviour of materials under defined loading conditions and loading states.
Within this paper an overview about different testing facilities and the material behaviour including monoaxial, biaxial and triaxial testing under high rate loading is given. Starting with quasi-standardised tensile and compression tests und high rate loading, special emphasis is payed on difficult loading conditions and loading states like high temperature and high strain loading (>1200°C, f>1) and multiaxial impact tests. Thereby, the impact behaviour of selected materials is shown and compared under different loading conditions. Thereby, a distinction is made between virgin and manufactured material behaviour (e.g. welding) or pre-damaged materials is made. Especially, if the influence of the manufacturing history is investigated, under certain loading states the impact material properties show a dramatic difference compared to virgin material state. This paper shows some examples of different material behaviour under the conditions described before.
Additionally, the paper deals with the determination of yield loci of materials under dynamic loading conditions. Thereby, the newly developed possibility of material testing under biaxial compressive loading (3rd quadrant) is presented and discussed.