INTERFACIAL PROPERTIES OF FIBROUS COMPOSITES .1. MODEL FOR THE DEBONDING AND PULL-OUT PROCESSES

The processes for debonding and pull-out in parallel-sided as well as tapered fibre composites are described. Models which can predict and account for all the reported experimental debonding and pull-out behaviour are developed. The effect of the interfacial properties on the plot of maximum pull-out force against fibre embedded length is elucidated. Knowledge of the interfacial parameters of a composite allows proper characterization and leads to better prediction of the mechanical properties.