Static and cyclic evaluation of interlayer bonding

Although static interlayer bond testing has been established for quality control during recent years its significance has been questioned and in the wake of this discussion several more realistic cyclic testing devices have been proposed. The Germany testing device developed at the University of Dresden even found entrance into the European test standards and the device has been commercially available for a couple of years. The paper presents an investigation dealing with the importance of interlayer bond testing for performance evaluation and focuses on a comparison of results from static and cyclic interlayer bond testing. Based on the comparison of static and cyclic bond testing the benefits from cyclic testing will be evaluated and a recommendation for the cyclic testing procedure will be presented.