Experimental and simulative assessment of crashworthiness of mechanically aged short-fibre reinforced thermoplastics

DS 87-1 Proceedings of the 21st International Conference on Engineering Design (ICED 17) Vol 1: Resource Sensitive Design, Design Research Applications and Case Studies, Vancouver, Canada, 21-25.08.2017

Year: 2017
Editor: Anja Maier, Stanko Škec, Harrison Kim, Michael Kokkolaras, Josef Oehmen, Georges Fadel, Filippo Salustri, Mike Van der Loos
Author: Witzgall, Christian; Wartzack, Sandro
Series: ICED
Institution: Friedrich-Alexander-University Erlangen-Nuremberg, Germany
Section: Resource Sensitive Design, Design Research Applications and Case Studies
Page(s): 279-287
ISBN: 978-1-904670-89-6
ISSN: 2220-4342


Short-fibre reinforced thermoplastics (SFRT) are increasingly used in 21st century’s automotive construction. Besides statically loaded parts, SFRT are also used for safety-relevant components such as door modules and crash absorbers. Temperature, chemically aggressive media as well as mechanical loading lead to aging effects within the plastic, which generally, weakens the material’s mechanical properties. Thus, within the present paper, a series of tests is introduced in order to investigate the effect of mechanical ageing on the material’s crashworthiness behaviour. Furthermore, a concept for consideration the effects of ageing within numerical simulation is introduced.

Keywords: Simulation, Design for X (DfX), Numerical methods, Crashworthiness, Safety


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