Table 6: Comparison of the nondimensional frequencies of an SSSS plate.

ModeFerreira [28]Mindlin [28]Present

1010.93460.9300.9271
22.25452.2192.2055
32.25452.2192.2055
43.45923.4063.3600
54.30314.1494.1123
64.30314.1494.1123

10010.09650.09630.0952
20.24300.24060.2343
30.24300.24060.2343
40.38900.38470.3680
50.49280.48070.4580
60.49280.48070.4580