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Structural Engineering and Mechanics Volume 82, Number 2, April25 2022 , pages 225-232 DOI: https://doi.org/10.12989/sem.2022.82.2.225 |
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Wave propagation in a FG circular plate via the physical neutral surface concept |
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Gui-Lin She, Hao-Xuan Ding and Yi-Wen Zhang
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| Abstract | ||
| In this paper, the physical neutral surface concept is applied to study the wave propagation of functionally graded (FG) circular plate, the wave equation is derived by Hamiltonian variational principle and the first-order shear deformation plate model. Then, we convert the equations to dimensionless equations. The exact solution of wave propagation problem is obtained by Laplace integral transformation, the first order Hankel integral transformation and the zero order Hankel integral transformation. The results obtained by the current model are very close to those obtained in the existing literature, which indicates the correctness and reliability of this study. Moreover, the effects of the functionally graded index parameters and pore volume fraction on the wave propagation are also discussed in detail. | ||
| Key Words | ||
| circularplate; functionally graded materials; physical neutral surface concept; pores; wave propagation | ||
| Address | ||
| Gui-Lin She, Hao-Xuan Ding and Yi-Wen Zhang: College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China | ||