Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Gekoppelte FEM-Berechnungen - Ein CAE Werkzeug zur Verbesserung von crashrelevanten Karosserieteilen durch lokales Härten

Coupled FEM calculations - A CAE tool to improve crash-relevant automotive body components by local hardening
 
: Schilling, R.; Lütjens, J.; Hunkel, M.; Scholl, U.; Wolf, K.; Wallmersperger, T.; Jankowski, U.; Sihling, D.; Wiegand, K.; Zöller, A.; Heuse, M.

VDI-Gesellschaft Fahrzeug- und Verkehrstechnik:
Berechnung und Simulation im Fahrzeugbau 2008. 14. Internationaler Kongress und Fachausstellung : Tagung, Baden-Baden, 26. und 27. November 2008 = SIMVEC - Numerical analysis and simulation in vehicle engineering 2008
Düsseldorf: VDI-Verlag, 2008 (VDI-Berichte 2031)
ISBN: 978-3-18-092031-3
ISSN: 0083-5560
S.143-159
Internationaler Kongress und Fachausstellung Berechnung und Simulation im Fahrzeugbau <14, 2008, Baden-Baden>
Deutsch
Konferenzbeitrag
Fraunhofer SCAI ()

Abstract
In the automotive industry, increasing demands for weight reduction as well a safety requirements have motivated the use of locally optimized components. This study shows how crash-relevant side rails made of multi-phase steels can be improved in terms of local rigidity by local hardening, thus avoiding an increase of the cross section. Based on the experiments, the improvement of crash simulations by simulation of the entire production chain is investigated. A dedicated software tool was developed to enable the coupling of a wide range of commercially available FEM software products for metal forming, heat treatment and crash simulations. One central aspect to be solved is the transfer of tensor-like quantities such as stress or strain states. This provides the first-time opportunity to consider the complete process chain from stamping to heat treatment to the final crash simulation.

: http://publica.fraunhofer.de/dokumente/N-173379.html