The subject matter of the present invention is a method for measuring the Poisson's ratio and the residual stress of any material, that is, a metal, ceramic, polymeric, crystalline or amorphous material, in the form of a bulk material or surface coating.
Sebastiani, M., Bemporad, E. (2012)Metodo per la misura del rapporto di Poisson e dello stress residuo. . Brevetto No. US20150025815 A1.