Akademik Veri Yönetim Sistemi
Mechanics of Advanced Materials and Structures, cilt.33, sa.1, 2026 (SCI-Expanded, Scopus)
To date, concrete results that illustrate and analyze the influence of functionally gradation in plate material on the dispersion of quasi-Scholte and quasi-Lamb waves propagating in the “plate + fluid layer” system are almost entirely lacking. Given the importance of related investigations in both theoretical and practical terms, this work presents initial efforts in this field. The motion of the plate is described by the exact equations and relations of elastodynamics, while the flow of the fluid is governed by the linearized Euler equations for barotropic compressible fluids. A discrete analytical method is used to solve the field equations related to the plate’s motion. Numerical results concerning the dispersion of waves in the functionally graded material (FGM) plate + fluid system are presented and discussed. These results are obtained for the case where the FGM is a mixture of metal-Cr and ceramic, with water as the fluid. It is found that increasing the depth of the liquid layer increases the wave propagation velocity in the first mode but decreases it in the second and third modes. The estimated relations for the wave propagation velocity in the FGM plate + fluid system are derived accordingly.