Abstract

Because there is no literature on the effect of thermal loadings on guided wave propagation in FG plates, the present paper is to fill the gap. In the present paper, the wave propagation analysis of porous FG plates with clamped ends in thermal environments based on first order shear deformation theory are presented. The plates are exposed to various types of thermal loading including uniform and non-uniform temperature changes, the material properties of FG plates are temperature- and porosity-dependent. Using the Galerkin method, we obtain the dispersion relation of thermoelastic waves in porous functionally graded plates. Compared with the previous results, the correctness of the present work is verified. In the end, the effects of the temperature changes, porosity as well as power law index on the phase velocity and group velocity of the guided wave are investigated.

摘要

由于没有关于热载荷对 FG 板中导波传播影响的文献，本文旨在填补这一空白。在本文中，提出了基于一阶剪切变形理论的热环境中带有夹紧端的多孔 FG 板的波传播分析。板暴露于各种类型的热负荷，包括均匀和非均匀的温度变化，FG 板的材料特性取决于温度和孔隙率。使用伽辽金方法，我们获得了多孔功能梯度板中热弹性波的色散关系。与之前的结果进行对比，验证了当前工作的正确性。最后，温度变化的影响，