Urzhumov, YAStarr, AFSmith, DR2013-07-112013-07-112013-06-07https://hdl.handle.net/10161/7578We explore the possibilities coming from transformation acoustics and beyond for creating rigid elastic composite shells capable of suppressing the total scattering cross-section of acoustically large objects. The reported design methodology is based on generalized shape and topology optimization, and the outcomes are suitable for rapid prototyping techniques.en-USUnderwater acoustic cloakElastic compositesRigid elastic metamaterialsJournal article