Fatigue and Crash Simulation of Short Fiber-Reinforced Thermoplastics at the Component Level

Witzgall bending test 2023
Validation on component level: three point bending test

A new KTmfk paper deals with the fatigue damage of components made from short fibre-reinforced thermoplastics. These are damaged by repeated loading, which leads to a significant deterioration of the mechanical properties. The method presented by Witzgall and Wartzack enables a realistic simulation of these components, taking into account pre-damage. By combining highly dynamic and cyclic experiments as well as various simulations, the performance of the approach is tested. Component tests on ribbed beams are used for validation. The special feature of the work lies in the linking of fatigue life and crash suitability for short-fibre-reinforced thermoplastics, whereby the component level is included for the first time. Link: https://doi.org/10.3390/applmech4040061