Research Article
Development of a New Cracked Mindlin Plate Element
Table 2
Example 1: natural frequency of a simply supported plate with thickness m.
| | Thin plate | Thick plate | STRI3 | S4 | S4R | MP4 (present) |
| | First mode | 2421.70 | 2404.80 | | | | | | | | 2295.30 | 2482.90 | 2458.50 | 2426.10 | | | | 2421.50 | 2422.60 | 2410.90 | 2385.80 | | | | 2413.20 | 2388.50 | 2382.90 | 2397.70 |
| | Second mode | 6054.10 | 5950.20 | | | | | | | | 5509.10 | 6934.30 | 6826.40 | 6546.80 | | | | 5973.10 | 6371.20 | 6323.00 | 6210.80 | | | | 6044.21 | 6098.50 | 6076.40 | 6034.90 |
| | Third mode | 9686.60 | 9424.50 | | | | | | | | 8100.70 | 10967.00 | 10499.00 | 9716.10 | | | | 9256.20 | 10059.00 | 9860.60 | 9591.40 | | | | 9504.80 | 9604.30 | 9516.00 | 9427.90 |
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