Using basic electro-elastic formulation and variational formulation. a higher order finite element model has been developed for the analysis of debonding in a smart cantilever beam. Full length piezo patch embedded at the top and bottom of the aluminium core has been assumed to be de-bonded. The debonding has been incorporated at the interfaces between piezo patches and the core. https://safeersappliancers.shop/product-category/cda-ff881sc-280-litre-freestanding-upright-freezer-185cm-tall-frost-free/