High-performance composites based on Poly-ether-ketone-ketone (PEKK) have exhibited an exceptional impact resistance. However, update there is hardly any work focused on investigating the off-centre impact response of these composites. Therefore, this paper aims to investigate the impact response of the composite plates based on high-performance S2-glass fibre reinforced thermoplastic (GF/PEKK) subjected to impact loading at different kinetic energies and different impact locations. The composite plates were therefore manufactured based on a lay-up consisting of eight plies of fibrous reinforcement and PEKK powder compacted in a hot press. Following manufacture, the plates were subjected to impact, both centrally and at off-centre positions. Herein, the force and energy absorption profiles are presented, along with impact damage profiles. Further, an ABAQUS/Explicit finite element (FE) model was developed as a means of predicting the behaviour of the laminates when subjected to these various impact scenarios. The modelling results were then compared with these experimental findings. It is shown that the FE model can be used to successfully predict failure in these GF/PEKK laminates under conditions of both central and off-centre impact. • Impact response of S-glass/PEKK laminates under different kinetic energies and impact locations. • Composite plates manufactured by hot pressing PEKK powder impregnated woven glass fabric. • The impact response is highly location dependent. • The finite element modelling is developed to predict the impact response of S-glass/PEKK laminates. • The FE predictions are well validated against the experimental data.
Nassir et al. (Sun,) studied this question.