Abstract
We report a comprehensive analysis of the cloaks proposed for bending waves propagating in a thin metallic plate. The analysis uses a semi-analytical model which is able to reproduce the experimental data reported by Stenger and coworkers [see Phys. Rev. Lett., vol. 108, 014301 (2012)]. The model is based on the Kirkoff-Love equation of motion and employs the multilayer scattering algorithm to calculate the interaction of the propagating waves with the cloak. The boundary equations apply to the designed device give a complete description of the data without using simplified algorithms solved in a finite element framework. The performance of the cloak is characterized with the visibility factor, a parameter already employed in several acoustic cloaks. A discussion will be given of the performance of thecloak for flexural waves in comparison with acoustic cloaks
