Modal Analysis For Composite Sandwich Plates Of Honeycomb Core

Auteurs :  Gaagaia, Guenanou, Ahmed Belaadi, Aouaichia, Bouakba, Fergani
Année : 2018
Domaine : Sciences et génie des matériaux
Type : Communication
Conférence: 6th International Conference on Welding, Non Destructive Testing and Materials Industry (IC-WNDT-MI’18, Skikda 2018.
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés : Sandwich plate, homogenization, FRF's, modal analysis, Finite element method.

Résumé : 

.The purpose of this work is to realize a vibratory study on panel’s sandwiches established by the honeycomb core and aluminum skins, used in the conception of the aerospace structures; all the analyses are based on conditions in the embedded free limits (E-L-L-L). The aim is to compare the natural frequencies of the two plates with those obtained from the two simulation models. Two methods are used in modeling, 3D drawing of the sandwich structures and calculating an equivalent structure using the homogenization method based on representative elementary volume (REV) using ANSYS software. The modal resolution of these two configura-tions is performed by the finite element method. The comparison of numerical results shows excellent agreement.