Research Article
Dynamic Response of Soft Core Sandwich Beams with Metal-Graphene Nanocomposite Skins
Table 9
Frequencies Ω and loss factors
. Clamped beam.
| | Skins | FSDT-FSDT | HSDT-FSDT | HSDT-HSDT | | Ω [Hz] | [%] | Ω [Hz] | [%] | Ω [Hz] | [%] |
| | Al | 408.37
978.48
1757.73
2737.05
3928.44 | 13.477
13.108
11.284
9.246
7.431 | 421.53
1009.54
1805.93
2798.66
3999.52 | 13.005
13.446
12.010
10.140
8.326 | 385.95
709.09
850.99
901.59
923.83 | 12.335
8.078
3.797
2.046
1.257 |
| | Mg | 433.57
1041.96
1855.44
2856.66
4055.39 | 11.981
13.622
12.918
11.454
9.761 | 445.77
1076.11
1913.50
2936.21
4151.76 | 11.193
13.495
13.303
12.174
10.642 | 409.33
739.67
866.24
907.99
925.64 | 10.281
6.991
3.314
1.873
1.208 |
| | Ti | 721.39
1749.76
3194.49
5049.72
7334.33 | 13.815
11.271
8.761
6.628
5.0545 | 745.48
1797.66
3262.61
5131.23
7424.58 | 13.888
12.008
9.649
7.487
5.801 | 686.00
1310.24
1626.79
1746.84
1800.15 | 13.580
8.165
3.569
1.727
0.974 |
|
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