Free vibration behavior analysis of sandwich FGM beams by quasi-3D shear deformation theory and finite element method
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https://doi.org/10.15625/0866-7136/23915Keywords:
quasi-3D shear deformation theory, FEM, sandwich FGM structures, free vibrationAbstract
This study uses the finite element method to analyze the mechanical behavior and free vibration of sandwich FGM beams based on quasi-3D shear deformation theory. The material properties of sandwich FGM beams are developed based on the principle of continuously changing material properties along the $z$-axis. The novel point of this work is the application of a quasi-3D shear deformation theory to analyze the free vibration of sandwich FGM beams, providing higher accuracy than lower-order theories. The theoretical basis and FEM calculation methods are used to solve the free vibration problem of two-phase functionally graded sandwich beams (1D-FGSW) with a homogeneous core under the following boundary conditions: simply supported (SS), clamped-clamped (CC), and clamped-free (CF).
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