Search Results - "Assouar, Badreddine M."

Enlargement of a locally resonant sonic band gap by using double-sides stubbed phononic plates by Badreddine Assouar, M., Oudich, Mourad

“…We report on the theoretical analysis of the enlargement of locally resonant acoustic band gap in two-dimensional sonic crystals based on a double-side stubbed…”
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Theory of metascreen-based acoustic passive phased array by Li, Yong, Qi, Shuibao, Assouar, M Badreddine

“…The metascreen-based acoustic passive phased array provides a new degree of freedom for manipulating acoustic waves due to their fascinating properties, such…”
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Broadband plate-type acoustic metamaterial for low-frequency sound attenuation by Badreddine Assouar, M., Senesi, Matteo, Oudich, Mourad, Ruzzene, Massimo, Hou, Zhilin

“…We show experimentally that plate-type acoustic metamaterials can serve to totally prohibit low frequency structure-borne sound at selective resonance…”
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Dispersion curves of surface acoustic waves in a two-dimensional phononic crystal by Badreddine Assouar, M., Oudich, Mourad

“…Reliable numerical simulations of band structure for surface acoustic waves propagating in a two-dimensional phononic crystal are reported. Through an…”
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Three-dimensional collimated self-accelerating beam through acoustic metascreen by Li, Yong, Assouar, M. Badreddine

“…We report the generation of three-dimensional acoustic collimated self-accelerating beam in non-paraxial region with sourceless metascreen. Acoustic metascreen…”
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Hybrid phononic crystal plates for lowering and widening acoustic band gaps by Badreddine Assouar, M., Sun, Jia-Hong, Lin, Fan-Shun, Hsu, Jin-Chen

“…•Hybrid phononic-crystal plates are proposed to generate low and wide acoustic band gaps.•Three hybrid arrangements incorporate local resonances with stronger…”
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A sonic band gap based on the locally resonant phononic plates with stubs by Oudich, Mourad, Li, Yong, Assouar, Badreddine M, Hou, Zhilin

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Tunable solid acoustic metamaterial with negative elastic modulus by Hou, Zhilin, Assouar, Badreddine M.

“…We report in this letter on a tunable solid acoustic metamaterial with negative elastic modulus by means of piezoelectric composite. The theoretical formulae…”
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Propagation of acoustic waves and waveguiding in a two-dimensional locally resonant phononic crystal plate by Oudich, Mourad, Assouar, M. Badreddine, Hou, Zhilin

“…We demonstrate the waveguiding of Lamb waves in a locally resonant phononic crystal (LRPC) and we present an analysis of the guiding of elastic waves in…”
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Acoustic metasurface-based perfect absorber with deep subwavelength thickness by Li, Yong, Assouar, Badreddine M.

“…Conventional acoustic absorbers are used to have a structure with a thickness comparable to the working wavelength, resulting in major obstacles in real…”
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Computation of plate wave dispersion diagrams and surface wave velocities without explicit boundary conditions by Laude, Vincent, Assouar, Badreddine M, Zhilin Hou

“…We discuss the computation of the band structure of plate waves using the plane wave expansion (PWE) method. This method is generally used to formulate…”
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Controlled Nanostructuration of Catalyst Particles for Carbon Nanotubes Growth by Rizk, Sandra, Assouar, Badreddine M, De Poucques, Ludovic, Alnot, Patrick, Bougdira, Jamal

“…We report on a novel method based on a plasma pretreatment for controlled nanostructuration and patterning of iron catalyst particles from a continuous film in…”
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Phononic crystals based on LiNbO3 realized using domain inversion by electron-beam irradiation by Assouar, B.M., Vincent, B., Moubchir, H.

“…We report in this paper about the realization of domain inversion in z-cut lithium niobate by electron beam irradiation in order to perform phononic crystals…”
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Effect of diamond nucleation process on propagation losses of AlN/diamond SAW filter by Elmazria, O., Hakiki, M.E., Mortet, V., Assouar, B.M., Nesladek, M., Vanecek, M., Bergonzo, P., Alnot, P.

“…In this work, the effect of a diamond nucleation process on freestanding aluminium nitride (AlN)/diamond surface acoustic wave (SAW) device performances was…”
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Experimental evidence of locally resonant sonic band gap in two-dimensional phononic stubbed plates by Oudich, Mourad, Senesi, Matteo, Assouar, M. Badreddine, Ruzenne, Massimo, Sun, Jia-Hong, Vincent, Brice, Hou, Zhilin, Wu, Tsung-Tsong

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Modeling of Lamb wave propagation in plate with two-dimensional phononic crystal layer coated on uniform substrate using plane-wave-expansion method by Hou, Zhilin, Assouar, Badreddine M.

“…We show that the conversional three-dimensional plane wave expansion method can be revised to investigate the lamb wave propagation in the plate with…”
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Acoustic superfocusing by solid phononic crystals by Zhou, Xiaoming, Assouar, M. Badreddine, Oudich, Mourad

“…We propose a solid phononic crystal lens capable of acoustic superfocusing beyond the diffraction limit. The unit cell of the crystal is formed by four rigid…”
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Computation of plate wave dispersion diagrams and surface wave velocities without explicit boundary conditions by Laude, Vincent, Assouar, Badreddine M, Zhilin Hou

“…For the evaluation of the dispersion relation of surface acoustic waves (SAW) or plate (Lamb) waves, it is generally necessary to form a determinant of the…”
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