Temperature-dependent Failure Analysis of Fibre-reinforced Thermoplastics for Automotive
N. Schramm, L. Kroll
Technische Universität Chemnitz, Chemnitz, Germany
T. Grätzl, BMW Group, Landshut, Germany
Within the Federal Cluster of Excellence MERGE at the Technische Universität Chemnitz, three unidirectional fibre-reinforced thermoplastics with high potential for car body structures in automotive applications have been analysed: polyamide 6 with glass fibres, polyamide 6 with carbon fibres and polyphthalamide with carbon fibres.
All investigations are performed under thermomechanical loading conditions to analyse the temperaturedependent degradation of mechanical properties. As a result, these properties are analytically described as a function of temperature in the range from -20 °C to +80 °C to extend the physically-based fracture criterion of Cuntze and to design a roof bow of a car body structure for the BMW 7 Series supported by numerical simulation and experimental validation.
ITHEC 2018 Manuscript A3
Publication date: 04.04.2019
Manuscript A3 published in Conference Proceedings ITHEC 2018
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