Rings Discs And Cylinders Subjected To Rotation And Thermal Gradients

Summary

For thin rotating rings and cylinders of mean radius R, the tensile hoop stress set up is given by on = fxo2R2

The radial and hoop stresses at any radius r in a disc of uniform thickness rotating with an angular velocity co rad/s are given by

B pco2r2

rL 8

where A and B are constants, p is the density of the disc material and v is Poisson's ratio. For a solid disc of radius R these equations give ar = (3 + v)~(R2 ~ r2) 2

At the centre of the solid disc these equations yield the maximum stress values pco2R2

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