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- Oh, Joo Hwan
- Wave, Acoustics and Vibration Lab.
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Wave attenuation and dissipation mechanisms in viscoelastic phononic crystals
- Author(s)
- Oh, Joo Hwan, Kim, Yoon Jae, Kim, Yoon Young
- Issued Date
- 2013-03
- Citation
- JOURNAL OF APPLIED PHYSICS, v.113, no.10, pp.106101
- Abstract
- This work investigates wave attenuation and dissipation mechanisms in viscoelastic phononic crystals (VPCs) having different inclusion types in a long-wavelength regime. After investigating the intrinsic damping properties of VPCs for different inclusion sizes and materials, we carried out wave simulations revealing the energy dissipation by a finite VPC structure inserted inside an elastic medium. The simulations, supported by physical reasoning, showed that air-and metal-embedded VPCs can indeed dissipate more wave energy than pure viscoelastic media in low and high frequency ranges, respectively. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4795285
- Publisher
- AMER INST PHYSICS
- ISSN
- 0021-8979
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