Modeling of multilayered structures including porous materials using hierarchical elements and non coincident meshes
Keywords:Degrees of freedom (mechanics), Elastic moduli, Finite element method, Hierarchical systems, Mathematical models, Porous materials, Acoustical excitation, Hierarchical poroelastic elements, Mixed displacement-pressure formulation
AbstractThe coupling of mixed displacement-pressure formulation using hierarchical elements with a finite element plate modeling of an elastic domain assuming non-coincident meshes can be done. It can be used to predict the mean quadratic velocity and the transmission loss of a plate coated with porous materials. The results are very accurate and are with a reduced number of unknowns as compared to classical finite element modeling of the structure with the coincident meshes.
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