Vibro-acoustic response of FGM plates considering the thermal effects

In this paper, the vibro-acoustic response of functionally graded materials (FGM) plates subjected to thermal environment are investigated analytically. The governing equations of the FGM plate subjected to thermal environment are derived based on the classic plate theory through Hamilton's principle. The sound radiation of the FGM plate is calculated with Rayleigh integral. It is found that a dramatic discrepancy will occur if temperature dependent material properties are not taken into account. The temperature rise also has a significant effect on the vibro-acoustic response of the FGM plates.