Research Article
Development of a New Cracked Mindlin Plate Element
Table 3
Example 1: natural frequency of a simply supported plate with thickness m.
| | Thin plate | Thick plate | STRI3 | S4 | S4R | MP4 (present) |
| | First mode | 4843.3 | 4712.3 | | | | | | | | 4566.2 | 4738.6 | 4699.5 | 4625.7 | | | | 4813.1 | 4623.0 | 4603.4 | 4573.6 | | | | 4896.9 | 4559.7 | 4550.0 | 4561.0 |
| | Second mode | 12108.3 | 11335.5 | | | | | | | | 10902.0 | 12747.0 | 12595.0 | 12189.0 | | | | 11771.0 | 11796.0 | 11725.0 | 11637.0 | | | | 11808.5 | 11330.0 | 11296.0 | 11331.0 |
| | Third mode | 19373.2 | 17499.7 | | | | | | | | 16015.0 | 19263.0 | 18661.0 | 17443.0 | | | | 18131.0 | 17904.0 | 17635.0 | 17345.0 | | | | 18573.0 | 17205.0 | 17080.0 | 17228.6 |
|
|
