Research Article
The Impact of Critical Flutter Velocity in Composite Wind Turbine Blade with Prebend Condition
Table 1
Ply stiffness properties.
| | Material | Exy (GPa) | Eyy (GPa) | Gxy (GPa) | xy | Density (kg/m3) |
| | Gel coat | 3.44 | 3.44 | 1.38 | 0.3 | 1235 | | Resin | 3.5 | 3.5 | 1.4 | 0.3 | 1100 | | Foam | 0.256 | 0.256 | 0.022 | 0.3 | 200 | | TRIAX | 27.7 | 13.65 | 7.2 | 0.39 | 1850 | | E-LT-5500 | 41.8 | 14.0 | 2.63 | 0.28 | 1920 | | Saertax | 13.6 | 13.3 | 11.8 | 0.51 | 1780 |
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