Open Access
Table 6
Influence of lamination scheme on frequency and modal damping of the fundamental mode of LCB with L/h = 20.
| Laminate type | Lay up | Material | SS | CC | CF |
|---|---|---|---|---|---|
| Symmetric angle-ply | 30°/−45°/−45°/30° | GE | 171.01 (0.0119) | 280.83 (0.1081) | 60.89 (0.0122) |
| CE | 353.41 (0.0038) | 798.32 (0.0039) | 125.97 (0.0037) | ||
| Symmetric cross-ply | 0°/90°/90°/0° | GE | 198.17 (0.0067) | 448.61 (0.0073) | 70.54 (0.0069) |
| CE | 447.39 (0.0026) | 1009.06 (0.0029) | 159.53 (0.0026) | ||
| Anti-symmetric angle-ply | 45°/−45°/45°/−45° | GE | 145.37 (0.0179) | 329.46 (0.0182) | 51.79 (0.0180) |
| CE | 256.24 (0.0060) | 204.59 (0.3743) | 91.34 (0.0060) | ||
| Anti-Symmetric cross-ply | 0°/90°/0°/90° | GE | 162.03 (0.0113) | 366.91 (0.0114) | 57.74 (0.0113) |
| CE | 315.68 (0.0044) | 713.81 (0.0045) | 112.60 (0.0043) | ||
| Balanced laminate | 45°/30°/−30°/−45° | GE | 149.34 (0.0168) | 331.06 (0.0106) | 53.20 (0.0169) |
| CE | 272.26 (0.0054) | 525.89 (0.0313) | 97.05 (0.0054) | ||
| Quasi-isotropic | 0°/45°/−45°/90° | GE | 151.16 (0.0152) | 342.43 (0.0153) | 53.88 (0.0152) |
| CE | 239.28 (0.0105) | 542.13 (0.0105) | 85.43 (0.0105) | ||
| Quasi-isotropic | 0°/60°/−60° | GE | 154.28 (0.0158) | 349.47 (0.0159) | 54.99 (0.0158) |
| CE | 235.58 (0.0125) | 533.91 (0.0125) | 84.14 (0.0125) |
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