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Vibroacoustic Response of a Double-Walled Cylindrical FGM Shell with a Porous Sandwiched Layer

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Mechanics of Composite Materials Aims and scope

The transmission loss of sound through a cylindrical structure whose walls sandwich a layer of porous material is predicted on the basis of the classical shell theory for shells made of functionally graded materials (FGMs). FGM shells composed of metal and ceramic, with three different distributions (power-law, sigmoid, or exponential) of their volume fractions across the wall thickness, are considered. The porous layer is modeled as a fluid with equivalent properties. The transmission loss through the multilayered structure is obtained analytically in a broad frequency band. To validate the results found, they are compared with some known ones. The effects of variation in the volume fractions of materials are also studied.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Yadegar-e-Imam Khomeini (RAH) Branch, Islamic Azad University, Tehran, Iran

    H. Ramezani

  2. Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran

    R. Talebitooti

Authors
  1. H. Ramezani
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  2. R. Talebitooti
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Corresponding author

Correspondence to H. Ramezani.

Additional information

Russian translation published in Mekhanika Kompozitnykh Materialov, Vol. 51, No. 5, pp. 821-838 , September-October, 2015.

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Ramezani, H., Talebitooti, R. Vibroacoustic Response of a Double-Walled Cylindrical FGM Shell with a Porous Sandwiched Layer. Mech Compos Mater 51, 581–592 (2015). https://doi.org/10.1007/s11029-015-9529-0

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  • DOI: https://doi.org/10.1007/s11029-015-9529-0

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