Identification and Monitoring of the Material Properties of a Complex Shaped Part Using a FEMU-3DVF Method: Application to Wooden Rhombicuboctahedron
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| Titre | Identification and Monitoring of the Material Properties of a Complex Shaped Part Using a FEMU-3DVF Method: Application to Wooden Rhombicuboctahedron |
| Type de publication | Conference Paper |
| Year of Publication | 2020 |
| Auteurs | Viala R., Placet V, Cogan S. |
| Editor | Pakzad S |
| Conference Name | DYNAMICS OF CIVIL STRUCTURES, VOL 2, IMAC 2019 |
| Publisher | Soc Expt Mech |
| Conference Location | GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND |
| ISBN Number | 978-3-030-12115-0; 978-3-030-12114-3 |
| Mots-clés | Dynamical domain, material characterization, Non-destructive testing, Structure monitoring, Wood materials |
| Résumé | In this study, a non-destructive method, FEMU-3DVF, based on velocity fields measurements and finite element model updating is used to identify the material properties of a complex shaped wooden part. The part studied is a rhombicuboctahedron made of spruce wood. Its dynamical response is measured with a laser-3D vibrometer and the experimental modal basis is used to identify by inverse method the elastic properties of the spruce wood. Considering the experimental modes, the shear modulus in the RT plane of spruce (G(RT)) can be reliably measured. The part undergoes three different relative humidity cases which lead to three moisture content levels for which the material properties are identified. It is shown that GRT decreases and (eta(RT)) increases when the moisture content increases. This method can be used to monitor complex shaped structures in a non-destructive way. |
| DOI | 10.1007/978-3-030-12115-0_5 |