We determine the strength, deformation and toughness behavior of metallic materials, from quasi-static cases to dynamic-impact or crash- loading cases. Aside from the influence of loading rate, we also investigate the material behavior as affected by stress multiaxiality and temperature. We have experience in this regard primarily for steels, titanium alloys and lightweight aluminum- or magnesium-based alloys for many sectors.
We have established ourselves as a partner for the automotive industry, particularly in the field of body-panel characterization. Our range of services includes comprehensive recording of anisotropic material behavior as well as the transfer of this information into material models, including the measurements of forming limit diagrams (FLDs).
Besides the traditional fracture types – ductile and brittle – there is also a fracture behavior that primarily occurs at high loading rates. Where there is a shear load and concentration of deformation, a self-sharpening process occurs that ultimately results in macroscopic failure. This phenomenon is called adiabatic shear failure. This adiabatic shear failure may or may not be desired in practice. Using special testing methods, we can evaluate the material’s susceptibility to this and juxtapose it against the material’s hardness, for example.