Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Experimental identification of flexural and shear complex moduli by inverting the Timoshenko beam problem

Abstract : This paper addresses the problem of estimating the local viscoelastic parameters of sandwich beams. An original procedure involving an inverse vibratory method (Force Analysis Technique) and the Timoshenko beam theory is detailed and applied experimentally on a sample presenting a honeycomb core. The major philosophy relies in considering multi-layer beams as equivalent homogeneous structures. This simplified approach is thought to be more representative of the global dynamic behaviour, in addition the reduction of degrees of freedom is obviously an improvement for modelling on Finite Element software. When compared to other usual approaches, the method developed in this paper shows a very good agreement between the experimental sandwich beam and the homogeneous model, which highlights interesting insights for applying it to industrial structures. The local aspect, the robustness and the self-regularization properties are verified on a wide frequency range, making the procedure possibly efficient for characterization of structures on a production line, flaw detection and Structural Health Monitoring.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-02111809
Contributeur : Etienne Parizet <>
Soumis le : vendredi 26 avril 2019 - 11:37:47
Dernière modification le : jeudi 15 avril 2021 - 11:36:01

Identifiants

Collections

Citation

Thibault Wassereau, Frédéric Ablitzer, Charles Pezerat, Jean-Louis Guyader. Experimental identification of flexural and shear complex moduli by inverting the Timoshenko beam problem. Journal of Sound and Vibration, Elsevier, 2017, 399, pp.86-103. ⟨10.1016/j.jsv.2017.03.017⟩. ⟨hal-02111809⟩

Partager

Métriques

Consultations de la notice

64