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Title: Suitability assessments for advanced composite-metal hybrid material systems in automotive crash structural applications

Authors: Michael Dlugosch; Maximilian Volk; Dirk Lukaszewicz; Jens Fritsch; Stefan Hiermaier

Addresses: Department of Material Dynamics, Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI, Eckerstrasse 4, 79104 Freiburg, Germany ' Department of Material Dynamics, Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI, Eckerstrasse 4, 79104 Freiburg, Germany ' Vehicle Safety, BMW Group, 80788 Munich, Germany ' Department of Material Dynamics, Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI, Eckerstrasse 4, 79104 Freiburg, Germany ' Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI, Eckerstrasse 4, 79104 Freiburg, Germany

Abstract: The application of hybrid material systems composed of advanced composites and metals in automotive crash structural applications holds significant potential in terms of lightweighting and functional improvements. This paper proposes a comprehensive methodology to assess the suitability of vehicle body components for the application of hybrid material systems by analysing superimposed numerical crash simulation data of conventional steel bodies-in-white. The loading anisotropy and the global deformation are presented as two suitability criteria including an evaluation methodology to eventually select suitable hybrid material systems in the transition from conventional to enhanced material employment and vehicle structure design. Additionally, the methodology provides novel insights into the global structural loading by simultaneously considering multiple crash load cases.

Keywords: automotive; crash structures; hybrid material systems; material selection; suitability analysis.

DOI: 10.1504/IJAUTOC.2017.10007651

International Journal of Automotive Composites, 2017 Vol.3 No.1, pp.14 - 28

Received: 10 Jun 2016
Accepted: 26 Sep 2016

Published online: 07 Sep 2017 *

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