Determination of geometric role and damage assessment in hybrid fiber metal laminate (FML) joints based on acoustic emission

The ultimate damage patterns of bolted composite joints would change from bearing damage to shear damage due to different geometric parameters. However, it is still a challenging task to evaluate real-time damage progressive of hybrid (bolted/bonded) FML joints consisting of complex components in detail. Here, acoustic emission (AE) combined with a digital image correlation system (DIC), optical microscope and C-Scan technique is applied to...