title: Straightforward estimation of the elastic constants of an isotropic cube excited by a single percussion.
abstract: Ritz's method is applied to calculate accurate values of the lowest non-dimensional natural frequencies of a freely vibrating isotropic cube. The dependence of such frequencies and their quotients on Poisson's ratio is established. Vibration of a cube caused by percussion is detected at a point by a laser interferometer. With the help of the tables and graphs provided and with the values of the first lowest frequencies obtained experimentally in a single test, Poisson's ratio and the shear modulus are calculated by means of elementary arithmetical operations.
authors.forename: F J
authors.initials: FJ
authors.lastname: Nieves
authors.forename: F
authors.initials: F
authors.lastname: Gascón
authors.forename: A
authors.initials: A
authors.lastname: Bayón
authors.forename: F
authors.initials: F
authors.lastname: Salazar
mesh_terms: D000162:Acoustics; D004548:Elasticity; D005583:Fourier Analysis; D007368:Interferometry / Q000379:methods*; D008962:Models, Theoretical; D016012:Poisson Distribution; D013193:Stainless Steel; D014732:Vibration
chemical_list: D013193:Stainless Steel