Methods and apparatus for mechanical retainment of non-metallic fillers in pockets

摘要

A method for making a turbine blade includes providing a bucket in the turbine blade with a plurality of window pockets passing all the way through a wall of the bucket, positioning the window pockets in regions minimizing or at least reducing stress concentrations on the window pockets, and casting a composite comprising a resin matrix and layers of a fabric material in the bucket.