Identification of the anisotropic elastic and damping properties of complex shape composite parts using an inverse method based on finite element model updating and 3D velocity fields measurements (FEMU-3DFV) : application to bio-based composite violin soundboards - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Composites Part A: Applied Science and Manufacturing Année : 2018

Identification of the anisotropic elastic and damping properties of complex shape composite parts using an inverse method based on finite element model updating and 3D velocity fields measurements (FEMU-3DFV) : application to bio-based composite violin soundboards

Résumé

Inverse methods have been used for decades to identify material properties, in parallel, or as a substitution for direct methods. Although it has proven a useful method for many types of materials and simple geometrical shapes, it has barely been used on complex shape parts. This is the main objective of the non-destructive method proposed in this study. The proposed inverse approach, based on both vibrational experiment data and Finite Element Model Updating (FEMU), is successfully applied to a violin soundboard made of flax-epoxy composite. Results show that, by minimizing the discrepancy between the experimental and numerical data, three rigidities and three loss factors can be determined simultaneously. The identified values of the constitutive elastic moduli and longitudinal loss factor are in agreement with those determined using quasi-static tests and dynamic mechanical analysis.
Fichier principal
Vignette du fichier
a6b4467c-92a9-426a-86f9-8059e984726f-author.pdf (2.48 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02130067 , version 1 (15-05-2019)

Identifiants

  • HAL Id : hal-02130067 , version 1

Citer

Romain Viala, Vincent Placet, Scott Cogan. Identification of the anisotropic elastic and damping properties of complex shape composite parts using an inverse method based on finite element model updating and 3D velocity fields measurements (FEMU-3DFV) : application to bio-based composite violin soundboards. Composites Part A: Applied Science and Manufacturing, 2018, 106 (1), pp.91 - 103. ⟨hal-02130067⟩
41 Consultations
140 Téléchargements

Partager

Gmail Facebook X LinkedIn More