Identification and monitoring of the material properties of a complex shaped part using a FEMU-3DVF method : application to wooden rhombicuboctahedron - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2019

Identification and monitoring of the material properties of a complex shaped part using a FEMU-3DVF method : application to wooden rhombicuboctahedron

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 the material properties of the spruce wood. Considering the experimental modes, the shear modulus in the RT plane of spruce (GRT), as well as the corresponding loss factor (ηRT) 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 (ηRT) increases when the moisture content increases. This method can be used to monitor complex shaped structures in a non-destructive, contact-free, way; and is representative of a global behavior of the structure.
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Dates et versions

hal-02370496 , version 1 (19-11-2019)

Identifiants

  • HAL Id : hal-02370496 , version 1

Citer

Romain Viala, Vincent Placet, Scott Cogan. Identification and monitoring of the material properties of a complex shaped part using a FEMU-3DVF method : application to wooden rhombicuboctahedron. 37th Conference and Exposition on Structural Dynamics, Jan 2019, Orlando, United States. ⟨hal-02370496⟩
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