It

(b) Maximum stresses

At the centre of the disc, where r = 0, the above equations yield equal values of hoop and radial stress which may also be seen to be the maximum stresses in the disc, i.e. maximum hoop and radial stress (at the centre)

At the outside of the disc, at r — R, the equations give p(o2R2

The complete distributions of radial and hoop stress across the radius of the disc are shown in Fig. 4.3.

Fig. 4.3. Hoop and radial stress distributions in a rotating solid disc.

Rodiol stress a.

Fig. 4.3. Hoop and radial stress distributions in a rotating solid disc.

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