For the investigation of both the dynamic and static
behaviour of the blade, various analyses are performed
regarding the finite element mesh independency check, for
diversity of boundary conditions and layer orientations
configuration. Regarding the effect of the layer orientation
both on modal and static analyses, the original configuration
could be made stiffer by applying all layers in the 0-degree
direction. Some changes are observed in the order of
appearance of the normal modes regarding the new layer
orientations (i.e. 0 and 90 degrees) with respect to that of the
original one. The obtained analysis results of this particular
research study show that the normal modes are highly coupled
and needed to be investigated in details. This requires an
experimental modal testing which is an on-going process.