A Gradient Stable Node-Based Smoothed Discrete Shear Gap Method for Analysis of Reissner–Mindlin Plates
Table 8
First 12 parameterized natural frequencies of the elliptical plate with 446 nodes.
Modes
FEM-DSG
NS-FEM
NS-DSG
GS-DSG
Reference
1
6.6093
6.3951
6.463
6.4857
6.3595
2
11.938
8.587
11.513
11.572
11.369
3
19.611
9.151
18.496
18.662
18.425
4
23.984
9.579
22.042
22.388
22.203
5
29.916
10.671
27.367
27.782
27.628
6
33.244
10.903
29.873
30.402
30.158
7
43.224
11.273
38.241
39.089
39.012
8
44.833
11.661
39.064
39.934
39.874
9
54.672
13.268
45.674
47.269
47.500
10
59.026
13.963
49.719
51.119
51.421
11
59.871
15.246
50.818
52.405
52.582
12
69.465
15.655
56.690
58.618
58.565
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