-Endowed chair by Benteler AG since 2007-
Due to exhaustible raw materials and demands on climate protection, the reduction of vehicle masses in order to reduce fuel consumption is of critical importance. Therefore, main focus of the group “Automotive Lightweight Construction” is on innovative solutions for the automotive industry and related others in terms of materials, processes and applications. As the economic effi ciency is a critical issue for most industries, the cost structures of different process-routes are also taken into account in order to develop innovative components and applications, featuring high performances as well as balanced cost-to-weight ratios. For example, load-bearing components made of ultra-high-strength steel processed by the press-hardening technique could be mentioned here. Another important research fi eld pursued by this chair is the development of load adapted parts. Within these parts, the material properties in different sections of a component are adjusted depending on specifi c product-requirements, e.g. the mechanical loading. Thus, low or high strengths as well as brittle or ductile areas can be locally tailored by an appropriate selection of the applied process-route. Techniques used in this area are for example the inductive heating, whereby the evolution
of the microstructure as well as physical properties can be modifi ed within a short period of time.
Furthermore, the research focus is on materials and process fundamentals for the development and manufacturing of hybrid-components. Here, different materials, e.g. metals and fi ber-reinforced plastics, are combined and processed in order to allow for a symbiotically usage of the specifi c advantages of each material.
Regarding the technical equipment, the chair provides different possibilities for studying material as well as component properties. This covers a wide range of static, cyclic and dynamic tests as well as microstructural studies. In addition to 3 axle tests with static and cyclic forces up to 80 kN, cupping tests with temperatures up to 800 °C can also be performed. Crash tests can be performed with impact velocities of up to 25 m/s and impact energies up to 31 kJ, whereby this test facility can be equipped with an a high speed 3D camera system in order to analyze, for example, local strain distributions. Furthermore, the group of Automotive Lightweight Constructions has licenses of
the major CAD and simulation tools, such as SolidWorks, Abaqus, LS-Dyna and Hyperworks.