Geomechanics and Engineering

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Wave propagation in an FG circular plate in thermal environment

  • Gui-Lin, She (College of Mechanical and Vehicle Engineering, Chongqing University) ;
  • Yin-Ping, Li (College of Mechanical and Vehicle Engineering, Chongqing University)
  • Received : 2021.10.07
  • Accepted : 2022.12.15
  • Published : 2022.12.25
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Abstract

In this paper, considering the temperature dependence of material physical parameters as well as the effects of thermal effect and shear deformation, we have conducted an in-depth study on the wave propagation of functionally graded (FG) materials circular plate in thermal environment based on the physical neutral surface concept. The dynamic governing equations of functionally graded plates are established, and the dispersion relation of wave propagation is derived. The influence of different temperature fields on the propagation characteristics of flexural waves in FG circular plates is discussed in detail. It can be found that the phase velocity and group velocity of wave propagation in the plate decrease with the increase of temperature.

Keywords

Acknowledgement

The authors acknowledge this work is supported by the Hunan Provincial Innovation Foundation for Postgraduate (CX20190258).

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