Nicolas AUQUIER : Equivalent model of multilayer materials with unconventionnal coupling

from september 1, 2020 to august 31, 2023
Thesis defended October 26, 2023

Laboratories : LVA (Lyon) and LTDS (Lyon)
Thesis supervisors : Kerem Ege and Emmanuel Gourdon

Summary : 

The thesis project in acoustics is concerned with the modelization of "unconventionnal" coupling within homogenized multilayer materials, for example : interface relative sliding ; openings and local heterogeneities between two layers ; non-linear coupling, are all coupling conditions that aren't modelized so far. The PhD work in collaboration LTDS/LVA aims to provide the theory formalism necessary to describe these local phenomena, thus solving problematics commonly met with multilayer materials, in the industry for instance. The implementation of the vibro-acoustic behavior for such structures will eventually be optimized according to local dynamics. The generated results will yield more realiabily to vibro-acoustic analysis in multilayer materials vibrations.