Vibration Analysis of Piezoelectric Composite Plate Resting on Nonlinear Elastic Foundations Using Sinc and Discrete Singular Convolution Differential Quadrature Techniques
Table 4
Comparison between the normalized frequencies , using DSCDQM-DLK, grid sizes N, and the previous exact and numerical frequencies for the simply supported square isotropic plate (2M + 1 = 5, ,,,, and ).