Topology Optimization of a Steel-Aluminium-Hybrid for
an Automotive Body Structure
David Funke, Imperia
Since several years Imperia GmbH works together with partners
in the field of composite castings for automotive
hybrid body structures. Using the combination of steel- or
alumium stamping
within the casting of alumium or magnesium
alloys, very high structural performances can be indicated.
The advantage of
light metals’ less weight as well as the high strength
and ductility of steel will be taken. Therefor
a rib-structure of aluminium is casted in an open, thin-walled
sheet metal
to prevent the origination of local buckling.
The wide range of parameters for hybrid structures makes the
use of topology
optimization obvious and shows its high potential.
After a presentation of the forward-looking and innovative
concept of the steel-aluminium-hybrid, the
dimensioning of a rib-structure by using
topology optimization will be shown. The procedure will be
exemplified
by an automotive
body application.
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