Series-production automotive hood in integral CFRP design

Lightweight design is one of the main measures for reducing the fuel consumption and emissions of a vehicle. Due to the high weight specific mechanical properties, fibre reinforced plastics offer a high mass reduction potential. However there are several issues that have to be resolved in order to use FRPs in a larger scale in series-production cars. One of the main challenges is reducing production time and costs. Above all advanced optimisation procedures have to be used to ensure the efficient use of the material and to support the developer in handling the additional degrees of freedom when designing fibre reinforced plastics. Within the research project “Hightech.NRW – CFRP Body Panels” a series-production car hood in integral design, using carbon fibre reinforced plastic, is being developed. The presentation will demonstrate the potential of CFRP for a series-production car outer panels and describe the design process using Altair OptiStruct for the laminate optimisation and RADIOSS for the simulation the head impact for pedestrian protection.

The Author

Dipl.-Ing. Kristian Seidel, Univ.-Prof. Dr.-Ing. Lutz Eckstein
Project Engineer
Institut für Kraftfahrzeuge (ika) RWTH Aachen University
Steinbachstr. 7
52074 Aachen, Germany

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