Research on strength of multilayer composite cylindrical shell with rotating load

Composite is widely used owing to its excellent stiffness and strength performance. For rotating machine, in order to satisfy with structural stiffness and strength, the composite cylindrical shell is usually composed of spiral wingding layer and hoop winding layer, it gives rise to mechanical anisotropic which is different from that of metallic material, so that the difficulty of the structural design optimization is highly increased. Based on the thin-shell theory, the expressions of multilayer composite cylindrical layer stress are derived, and the effects of some factors such as the material parameters, layering system, winding angle, thickness of cylinder are studied. The results obtained can be applied in optimization design on the composite cylindrical shell of rotating machine. (authors)