Study on Material Strength of FRP Wind Turbine Blades
Date Issued
2008
Date
2008
Author(s)
Liou, Jer-Yuan
Abstract
This study mainly focuses on the mechanical characteristic of glass fiber reinforced plastics (GFRP) used for wind turbine blades. According to the past investigation, we discuss the characteristic of the material, which is varying with the category of fiber and resin and the stacking sequence, applied on the different part of the blades. We processed the static test, including the tension, compression, and shear test, and dynamic test, mainly fatigue test, based on the standard of material test. Then the characteristic of GFRP is provided cleanly and the database is established to make the foundation of the study and numerical calculation. Meanwhile, we can discuss the failure form with the different stacking sequence and influence on the strength and stiffness of the different resin. This paper also applies the theoretical analysis to conduct the mechanical characteristic of material with the different stacking sequence. That is, we substitute the stiffness of the single axial laminates to determine the stiffness of the biaxial and triaxial laminates based on the compound rule for the composite material and then compare the results with the experimental results. Finally we use the finite element software, ABAQUS, to discuss the shear strength analysis of the GFRP laminated plate.
Subjects
wind turbine blade
FRP
material test
glass fiber
Type
thesis
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