A new study for laminated composite rotating disk fabricated from symmetric sequential quasi-isotropic layers to predict three-dimensional (3D) stress and deformation is addressed. It is used to evaluate the mechanical stress and integrity of fibre reinforced multi-layer laminates used for ultra high-speed impellers of modern process centrifugal compressors. Composite laminates are relatively weak in out-of-plane loading, inter-laminar stress, stress concentration near the edge, and stress singularities. 3D stresses and deformations shall be investigated for laminated composite rotating disk applications.
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