Multi-scale Damage Model for Mechanical High Cycle Fatigue (HCF) of Short Glass Fibre Reinforced Thermoplastics (SGFRTP)

Light-weight structures with controlled cost is a major issue in all industries especially those related to transport. In order to achieve this objective, short glass fiber reinforced thermoplastics (SGFRTP) are used to replace some metallic parts. So far, their use in structural parts has been hampered by the lack of predictive numerical simulation tools especially under fatigue loading. In this paper an approach to model the HCF of the unreinforced thermoplastic polymers is presented. The idea of this model will be useful to obtain a HCF model for the SGFRTP.