N
Noureddine Atalla
Researcher at Université de Sherbrooke
Publications - 243
Citations - 4403
Noureddine Atalla is an academic researcher from Université de Sherbrooke. The author has contributed to research in topics: Finite element method & Sound transmission class. The author has an hindex of 36, co-authored 233 publications receiving 3857 citations.
Papers
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Modeling of perforated plates and screens using rigid frame porous models
Noureddine Atalla,Franck Sgard +1 more
TL;DR: In this paper, a perforated plate or screen can be modeled as an equivalent fluid following the Johnson-Allard approach with an equivalent tortuosity, depending on the media interfacing with the perforation system.
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Numerical prediction of sound transmission through finite multilayer systems with poroelastic materials
TL;DR: In this article, a three-dimensional finite element model is proposed to predict the sound transmission performance of finite multilayer systems containing poroelastic materials. But the model is based on a two-field displacement formulation derived from the Biot theory.
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Enhanced weak integral formulation for the mixed (u_,p_) poroelastic equations
TL;DR: In this paper, an enhancement of the weak integral formulation is proposed to facilitate its finite element implementation, which simplifies the assembly process of the poroelastic medium, the imposition of its boundary conditions, and its coupling with elastic and acoustic media.
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On the use of perforations to improve the sound absorption of porous materials
TL;DR: In this paper, the authors present two complementary models to deal with double porosity materials: an analytical model based on homogenization techniques and a numerical model relying on a finite element discretization of the domains.
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Evaluation of the acoustic and non-acoustic properties of sound absorbing materials using a three-microphone impedance tube
TL;DR: In this paper, an indirect method based on a three-microphone impedance tube setup was used to determine the non-acoustic properties of a sound absorbing porous material, which was applied to four different sound absorbing materials and results of the characterization are compared with existing direct and inverse methods.