jap banner
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Journal of Applied Physics / Volume 107 / Issue 2 / ARTICLES / Structural, Mechanical, Thermodynamic, and Optical Properties of Condensed Matter

J. Appl. Phys. 107, 023519 (2010); http://dx.doi.org/10.1063/1.3284943 (5 pages)

Low-frequency acoustic absorption of localized resonances: Experiment and theory

Honggang Zhao, Jihong Wen, Dianlong Yu, and Xisen Wen

Institute of Mechatronical Engineering, and the PBG Research Center, National University of Defense Technology, Changsha 410073, People's Republic of China

View MapView Map

(Received 25 September 2009; accepted 3 December 2009; published online 27 January 2010)

The idea of localized resonance in phononic crystals is introduced to improve the low-frequency acoustic absorption of viscoelastic materials, which are widely used underwater to absorb the unwanted noise and meet a difficult challenge to enhance low-frequency absorption. Experimental measurements for acoustic absorptances of various viscoelastic polymer slabs embedded with locally resonant scatterers, i.e., heavy spheres coated by soft silicon rubber, are reported. Theoretical investigations using a layer-multiple-scattering method show good agreement with the experiment results, which supports unambiguously the observed low-frequency absorption phenomenon. The physical mechanism for the low-frequency absorption is also investigated by referring the elements of the Mie scattering matrix. The observations suggest that the scattered energy tends to remain in transverse waves, which enhance the multiple scattering, damp rapidly in viscoelastic polymer and dominate the acoustic absorption.

© 2010 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT
    1. Samples of experiment
    2. Apparatus and approach of experiment
  3. RESULTS AND DISCUSSION
    1. Comparisons of experimental and theoretical results
    2. Mechanisms of acoustic absorption
  4. CONCLUSIONS

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

acoustic wave absorption, acoustic wave scattering, composite materials, phononic crystals, polymers, viscoelasticity

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3284943

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    K. M. Ho, C. Cheng, Z. Yang, X. Zhang, and P. Sheng, Appl. Phys. Lett. 83, 5566 (2003)APPLAB000083000026005566000001.

    C. Goffaux, J. Sánchez-Dehesa, A. Levy Yeyati, P. Lambin, A. Khelif, J. O., Vasseur, and B. Djafari-Rouhani, Phys. Rev. Lett. 88, 225502 (2002).

    M. Hirsekorn, Appl. Phys. Lett. 84, 3364 (2004)APPLAB000084000017003364000001.

    H. G. Zhao, Y. Z. Liu, J. H. Wen, D. L. Yu, and X. S. Wen, J. Appl. Phys. 101, 123518 (2007)JAPIAU000101000012123518000001.

    I. E. Psarobas, N. Stefanou, and A. Modinos, Phys. Rev. B 62, 278 (2000).

    Z. Y. Liu, C. T. Chan, P. Sheng, A. L. Goertzen, and J. H. Page, Phys. Rev. B 62, 2446 (2000).

    Z. Y. Liu, C. T. Chan, and P. Sheng, Phys. Rev. B 65, 165116 (2002).

    C. Goffaux, J. Sánchez-Dehesa, and P. Lambin, Phys. Rev. B 70, 184302 (2004).


For access to citing articles, you need to log in.


Figures (7) Tables (1)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Low-frequency acoustic absorption of localized resonances: Experiment and theory
  2. Annealing effects on a high-k lanthanum oxide film on Si (001) analyzed by aberration-corrected transmission electron microscopy/scanning transmission electron microscopy and electron energy loss spectroscopy
  3. Enhanced luminescence properties of highly threaded conjugated polyelectrolytes with potassium counter-ions upon blending with poly(ethylene oxide)
  4. Surface profile dependence of the photon coupling efficiency and enhanced fluorescence in the grating-coupled surface plasmon resonance
  5. Modeling the performance of magnetic nanoparticles in multimodal cancer therapy
Go to AIP Home
Copyright © American Institute of Physics
close