Predicting fatigue crack initiation in fibre metal laminates based on metal fatigue test data

Test results from the literature for Glare 4B-3/2-0.3 have been replicated using the aforementioned methodology. It is shown that it can accurately predict the number of cycles to crack initiation, although the S-N data that is used for the predictions dictates the obtained accuracy. The closer the stress cycle value of the S-N data is to the value of the case analysed, the higher the accuracy obtained. Such a trend was not observed for the stress concentration factor of the S-N curves used, although a choice for S-N data with a different stress concentration factor can cause a significant change in precision. The method is also shown to work for several other fibre metal laminates.