 This research paper investigated the use of electromagnetic acoustic transducers, EMATs, to detect debonding in aluminum slash rigid polyurethane foam composite plates, ARCPs. It found that a zero-mode lamb waves with large out-of-plane displacements were ideal for detecting debonding because they do not require a coupling agent, or non-contact, and provide convenient detection. Furthermore, a finite element simulation model was developed to analyze the damping of the RPUF layer, the damping of the PU film at the interface, and the bonding stiffness of the interface. This model showed that the transmitted energy from the aluminum plate quickly attenuated and did not reflect back into the aluminum plate, which could be used to characterize the debonding. Finally, experiments were conducted on an ARCP using EMATs, and the experimental results agreed well with the simulation results. This article was authored by Xianyang, Jiangsu, Xu Changzhang, and others. We are article.tv, links in the description below.