Dear Khaled,
As your aware from the following forum topic: Structural design of the wind turbine blade, Sandia National Laboratory (SNL) has reversed-engineered the NREL 5-MW blade. Other than this, I’m not aware of another version of the composite layup.
I have not looked at SNL’s reverse-engineered blade in detail, but my guess is your question would be best answered by Brian Resor.
Best regards,