The complete radial and hoop stress distributions are indicated in Fig. 4.4.

Fig. 4.4. Hoop and radial stress distribution in a rotating hollow disc.

4.4. Rotating thick cylinders or solid shafts

In the case of rotating thick cylinders the longitudinal stress oL must be taken into account and the longitudinal strain is assumed to be constant. Thus, writing the equations for the strain in three mutually perpendicular directions (see ยง4.2), eL = ~ (oL - voH - vor) E

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