Sonic composites as noise barriers


  • Ligia Munteanu Institute of Solid Mechanics, Romanian Academy, Bucharest, Romania
  • Veturia Chiroiu Institute of Solid Mechanics, Romanian Academy, Bucharest, Romania
  • Ciprian Dragne Institute of Solid Mechanics, Romanian Academy, Bucharest, Romania
  • Valeria Mosnegutu Institute of Solid Mechanics, Romanian Academy, Bucharest, Romania
  • Nicolae Nedelcu Institute of Solid Mechanics, Romanian Academy, Bucharest, Romania
  • Iulian Grip Institute of Solid Mechanics, Romanian Academy, Bucharest, Romania
  • Cristian Rugina Institute of Solid Mechanics, Romanian Academy, Bucharest, Romania


Sonic composite, Band-gaps, Multiple resonances, Noise barrier


We address an alternative road traffic noise barrier as a sonic composite consisted of an array of acoustic scatterers embedded in air. Acoustic scatterers are piezoceramic hollow spheres of functionally graded materials - the Reddy graded hollow spheres. Multiple (Bragg) scattering lead to a selective sound attenuation in the frequency bands called band gaps or stop bands for certain spacing and size of the scatterers. Size variations of the band gaps are discussed in this paper by taking into account the intrinsic acoustic properties of the scatterers. We reveal that the noise barrier simulation in the context of the road traffic noise confirm the Bragg band gaps existence and the predicted multiple resonances at frequencies below the first Bragg band gap.


SMITH, B.J., PETER, R.J., OWEN, S., Acoustics and noise control, Longman, 1985.

BRILLOUIN, L., Wave propagation in periodic structures, Dover Publications Inc., 1946.

YUNG BOON CHONG, Sonic Crystal Noise Barriers, PhD Thesis, The Open University, 2012.

MUNTEANU, L., CHIROIU, V., SIRETEANU, T., IOAN, R., Sonic multilayer composite films, chapter 11 in Inverse Problems and Computational Mechanics, Vol. 2, Editura Academiei, 2016, pp. 251-170.

CHIROIU, V., MUNTEANU, L., DUMITRIU, D., RUGINA, C., BRISAN, C., On the sonic films with defects, Proceedings of the Romanian Academy, series A, 18, 4, pp. 378-385, 2017.

MUNTEANU, L., CHIROIU, V., SIRETEANU, T., DUMITRIU, D., A multilayer sonic film, Journal of Applied Physics, 118, 16, 165302, 2015, DOI: 10.1063/1.4933291.

HIRSEKORN, M., DELSANTO, P.P., BATRA, N.K, MATIC, P., Modelling and simulation of acoustic wave propagation in locally resonant sonic materials, Ultrasonics, 42, 1–9, pp. 231–235, 2004,

MUNTEANU, L., CHIROIU, V., On the dynamics of locally resonant sonic composites, European Journal of Mechanics-A/Solids, 29, 5, pp. 871–878, 2010, DOI:10.1016/j.euromechsol.2010.02.013.

MUNTEANU, L., Nanocomposites, Editura Academiei, 2012.

CVETICANIN, L., CVETICANIN, D., Application of the Acoustic Metamaterial in Engineering: An overview, Romanian Journal of Mechanics, 2, 1, pp. 29-36, 2017.

SÁNCHEZ-PÉREZ, J.V., RUBIO, C., MARTÍNEZ-SALA, R. SÁNCHEZ-GRANDIA, R., GÓMEZ, V., Acoustic barrier based on periodic arrays of scatterers, Appl. Phys. Lett., 81, 5240, 2002,

KHELIF, A. CHOUJAA, A., DJAFARI-ROUHANI, B., WILM, M., BALLANDRAS, S., LAUDE, V., Trapping and guiding of acoustic waves by defect modes in a full-band-gap ultrasonic crystal, Phys. Rev. B 68, 214301, 2003.

KHELIF, A., WILM, M., LAUDE, V., BALLANDRAS, S., DJAFARI-ROUHANI, B., Guided elastic waves along a rod defect of a two-dimensional photonic crystal, Phys. Rev., E 69, 6, 067601, 2004.

JOANNOPOULUS, J.D., JOHNSON, S.G., WINN, J.N., MEADE, R.D., Photonic Crystals. Molding the Flow of Light, Princeton University Press, 2008.

ROMERO-GARCÍA, V., SÁNCHEZ-PÉREZ, J.V., GARCIA-RAFFI, L.M., Evanescent modes in sonic crystals: Complex relation dispersion and supercell approximation, Journal of Applied Physics, 108, 4, pp. 108-113, 2010.

RUGINA, C., BRATU, P., MOSNEGUTU, V., On the Burgers’ equation and application to nonlinear acoustics, Romanian Journal of Mechanics, 3, 2, pp. 37-47, 2019.

CHIROIU, V., BRISAN, C., GIRIP, I., On the Dynamic Optimisation of Sonic Composites, Romanian Journal of Mechanics, 1, 1, pp. 13-20, 2016.

REDDY, J.N., A Generalization of Two-Dimensional Theories of Laminated Composite Laminate, Comm. Appl. Numer. Meth., 3, pp. 173–180, 1987,

REDDY, J.N., LIU, C.F., A higher-order theory for geometrically nonlinear analysis of composite laminates, NASA Contractor Report 4056, 1987.

REDDY, J.N., WANG, C.M., KITIPORNCHAI, S., Axisymmetric bending of functionally graded circular and annular plates, Eur. J. Mech., A/Solids 18, pp. 185–199, 1999,

Y. DE KLUIZENAAR, JANSSEN, S.A., F.J. VAN LENTHE, MIEDEMA H.M.E., MACKENBACH, J.P., Long-term road traffic noise exposure is associated with an increase in morning tiredness, J. Acoust. Soc. Am., 126, 2, pp. 626-633, 2009.

BABISCH, W.F., BEULE, B., SCHUST, M., KERSTEN, N., ISING, H., Traffic noise and risk of myocardial infraction, Epidemiology, 16, 1, pp. 33-40, 2005.

BABISCH, W.F., Road traffic noise and cardiovascular risk, Noise &Health, 10, 38, pp. 27-33, 2008.

SANCHEZ-PEREZ, J.V., ROMERO-GARCIA, V., ATTENBOROUGH, K., TAHERZADEH, S., CHONG, Y.B., The influence of the ground on the attenuation properties of sonic crystal barriers, 2nd Pan-American/Iberian Meeting on Acoustics 2010, Cancun, Mexico, 2010.

CHIROIU, V., MUNTEANU, L., On the free vibrations of a piezoceramic hollow sphere, Mech. Res. Comm., Elsevier, 34, 2, pp. 123–129, 2007,

CHEN, W.Q., Vibration theory of non-homogeneous, spherically isotropic piezoelastic bodies, J. Sound Vibr., 229, pp. 833–860, 2000,

CHEN, W.Q., WANG, L.Z., LU, Y., Free vibrations of functionally graded piezoceramic hollow spheres with radial polarization, J. Sound Vibr., 251, 1, pp. 103–114, 2002,

STAN, M., On the specific parameters of architectural acoustics, Romanian Journal of Mechanics, 3, 2, pp. 3-14, 2019.

STAS 9783/1-94 Standard Acoustics in Constructions. The articulation rate (degree of intelligibility) in public auditoriums. Method of determination.



Most read articles by the same author(s)

1 2 3 4 > >>