The paper presents a procedure whereby the Poisson's ratio and the dynamic Young's modulus of isotropic and homogeneous materials are determined using two of the first four frequencies of natural vibration in thin rectangular plates. The procedure is based on suitable approximate relationships, relating the resonance frequencies to the elastic constants of the material. These relations were derived from the Warburton's ones by taking into account for a correction factor obtained by an extensive numerical analysis carried out by a finite element code. In order to verify the procedure, a comparison with reference solutions has been made.
A procedure for determining the elastic constants of isotropic materials by modal vibration testing of rectangular thin plate / Alfano, M.; Pagnotta, L.. - (2005), pp. 673-679. (Intervento presentato al convegno 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics tenutosi a Portland, OR, usa nel 2005).
A procedure for determining the elastic constants of isotropic materials by modal vibration testing of rectangular thin plate
Alfano M.;
2005
Abstract
The paper presents a procedure whereby the Poisson's ratio and the dynamic Young's modulus of isotropic and homogeneous materials are determined using two of the first four frequencies of natural vibration in thin rectangular plates. The procedure is based on suitable approximate relationships, relating the resonance frequencies to the elastic constants of the material. These relations were derived from the Warburton's ones by taking into account for a correction factor obtained by an extensive numerical analysis carried out by a finite element code. In order to verify the procedure, a comparison with reference solutions has been made.
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