Free Vibrations of Clamped Symmetrically Laminated Skew Plates

Vibration Analysis of Skew Fibre-Reinforced Composite Laminated Plates

“…The following material properties are used for the graphite/epoxy composite: Table 7, the results show that the natural frequency parameters are almost the same as the results of Hosokawa et al [18], and Han and Dickinson [19] for graphite/epoxy. Hosokawa et al [18] use the Green function with 66 number of terms. Han and Dickinson [19] use a hierarchical "nite element method with 20 shape functions.…”

“…For a fully clamped skew plate there is better accordance for higher modes and low skew angles as shown in Table 6. [19] In Tables 7}9 non-dimensional [18] of Hosokawa et al [18], and Han and Dickinson [19]. The following material properties are used for the graphite/epoxy composite: Table 7, the results show that the natural frequency parameters are almost the same as the results of Hosokawa et al [18], and Han and Dickinson [19] for graphite/epoxy.…”

“…theory. Hosokawa et al [18] analyzed free vibrations of a fully clamped symmetrically laminated skew plate, using the Green function approach. They studied the e!ects of the skew angle and the "bre orientation angle on natural frequencies and mode shapes.…”

On the Convergence of Laminated Composite Plates of Arbitrary Shape through Finite Element Models

“…The mesh in Abaqus are generated by setting the number of elements on the plate radius and one-quarter of the circumference, respectively. Therefore, the following discretizations have been considered: (5, 1), (10,5), (20,15), (30,25), (40,35), (50,45), (60,55). It is remarked that the present models consider the double symmetry of the structure by meshing all plate four quarters in the same way.…”

“…With reference to the discretizations defined above for Straus7, the reference mesh is the one with 20 × 20 (for a global number 4800 elements) and (50,45) is the number of elements used in Abaqus for each circular quarter. Finally, the SFEM considers 25 × 25 grid points for each of the previous meshes, except for the mesh with 12 elements that considers a 11 × 11 grid.…”