A theoretical analysis is made of the time to rupture for steady-state creep of: (a) A rotating thin circular disk of arbitrary profile, and (b) a rotating thin hollow shell of revolution. The results for the disk are given in terms of an integral; the special case of constant temperature distribution is considered explicitly. Results are tabulated and plotted for a disk initially of constant thickness for various parameter values. The rupture time for shells is given in closed form.

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