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On the development of finite element model to analyze the behavior of hybrid composites considering the manufacturing history

Beitrag zur Entwicklung eines FE-Modells zur Vorhersage des Bauteilverhaltens von Hybridbauteilen unter Berücksichtigung der Fertigungshistorie
 
: Riemer, Matthias; Kießling, Robert; Müller, Roland; Drossel, Welf-Guntram; Landgrebe, Dirk; Ihlemann, Jörn

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Volltext (PDF; )

International Deep Drawing Research Group -IDDRG-:
37th International Deep-Drawing Research Group Conference 2018 : "Forming of High Performance Sheet Materials and Components" - IDDRG 2018, 3-7 June 2018, University of Waterloo, Ontario, Canada
Bristol: IOP Publishing, 2018 (IOP conference series. Materials science and engineering 418)
Art. 012128, 9 S.
International Deep Drawing Research Group (IDDRG Conference) <37, 2018, Waterloo>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IWU ()
hybrid composite; process modelling; crash modelling

Abstract
Hybrid parts are strongly moving into the focus for lightweight applications. Unfortunately, the accurate, simulative design, which comprises the accurate prediction of final part geometry, is still a challenging task. In the scope of this paper, an approach to improve the ac-curacy of appropriate finite element simulations is presented. To this end, the manufacturing history of the hybrid part is considered within the simulation of the part behavior. To create a finite element model of the considered hybrid composite, the intrinsic manufacturing process is modelled first. This includes the modelling of the thermoforming process of a fiber reinforced polymer as well as the sheet metal forming process for the fabrication of form fit elements. Then, the geometry of the hybrid part is deduced from the geometries of the single components. Afterwards, the material properties, including the local fiber volume content as well as the local fiber orientation, are mapped to the finite elements. Consequently, a workflow to create a finite element model which considers manufacturing history is developed and successfully tested.

: http://publica.fraunhofer.de/dokumente/N-515276.html