Damage analysis of open-hole tension laminates

A model for the damage analysis of the open-hole tension composite laminates was developed. The model divided the failure modes of composite laminates into intra-laminar and inter-laminar damage. The model simulated damage initiation, damage progression, final damage and predicted failure mode and failure load of laminates with central circular holes subjected to tensile load based on progressive failure analysis methodology. The failure modes and failure loads of different laminates were predicted and compared with the experimental results. The results show that the model could predict the failure mode and failure load of open-hole tension laminates exactly.