Share Email Print
cover

Proceedings Paper

Viscoelastic material properties' identification using full field measurements on vibrating plates
Author(s): Baoqiao Guo; Alain Giraudeau; Fabrice Pierron; Stéphane Avril
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The paper presents an experimental application of a method leading to the identification of the elastic and damping material properties of isotropic vibrating plates. The theory assumes that the searched parameters can be extracted from curvature and deflection fields measured on the whole surface of the plate at two particular instants of the vibrating motion. The experimental application consists in an original excitation fixture, a particular adaptation of an optical fullfield measurement technique, a data preprocessing giving the curvature and deflection fields and finally in the identification process using the Virtual Fields Method (VFM). The principle of the deflectometry technique used for the measurements is presented. First results of identification on an acrylic plate are presented and compared to reference values. The used theoretical principle only assumes the global equilibrium of the observed part of the coupon. Therefore the identification remains insensible to the parasitic effects of the boundary conditions. This is confirmed by the results of the last presented experimentation.

Paper Details

Date Published: 25 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737565 (25 August 2009); doi: 10.1117/12.839368
Show Author Affiliations
Baoqiao Guo, Lab. de Mécanique et Procédés de Fabrication, Arts et Métiers ParisTech (France)
Alain Giraudeau, Lab. de Mécanique et Procédés de Fabrication, Arts et Métiers ParisTech (France)
Fabrice Pierron, Lab. de Mécanique et Procédés de Fabrication, Arts et Métiers ParisTech (France)
Stéphane Avril, Ecole Nationale Supérieure des Mines (France)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

© SPIE. Terms of Use
Back to Top